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The most common problems with the 5.7 Hemi engine are cold-start exhaust-manifold leaks caused by broken hardware or warped manifolds, and a more serious lifter-and-camshaft wear pattern reported by owners. A HEMI tick alone cannot distinguish them: temperature, location, misfires, vibration, warning lights, power loss, and exhaust fumes determine how urgently the engine needs inspection.
Owner reports use HEMI tick as a catch-all term, but the term does not identify a failed component. The strongest documented category is the exhaust-manifold problem, supported by owner narratives and Stellantis/Ram technical service bulletins for specified Ram 1500 applications. Lifter and camshaft failures are also repeatedly described by owners, but no reliable published percentage establishes how often they occur across the entire 5.7L HEMI population.
Key takeaways
- The phrase HEMI tick describes more than one condition: a cold-start exhaust-manifold leak and an internal lifter-or-camshaft problem can sound similar.
- Stellantis/Ram TSB 09-001-24 covers cold-engine exhaust-manifold ticking on specified 2019–2024 Ram 1500 applications equipped with the 5.7L HEMI MDS VVT or eTorque engine; the bulletin is not proof that every engine in that range is affected.
- A tick that continues when warm and occurs with a misfire, shaking, check-engine light, power loss, low oil pressure, or unusual smoke deserves prompt professional diagnosis.
- Owner complaint counts show recurring reports but do not establish how often the problem occurs across the entire 5.7L HEMI population.
- MDS is part of the valvetrain architecture discussed in owner reports, but the available evidence does not prove that MDS alone causes every lifter or camshaft failure.
- Oil level, oil specification, maintenance, and replacement parts must be matched to the vehicle’s year, model, engine code, manifold side, and configuration.
What are the most common problems with the 5.7 Hemi?
The most common reported 5.7 HEMI problems fall into two important categories: exhaust-manifold hardware or manifold failures, and lifter-and-camshaft wear. A third category is not a failure at all: normal injector or mechanical valvetrain noise can be mistaken for the HEMI tick.
| Reported problem | Typical owner-described pattern | What the evidence supports | Why it matters |
|---|---|---|---|
| Exhaust-manifold bolts, studs, gaskets, or manifolds | Tick is loudest immediately after a cold start, may seem to come from one side, and may become quieter as the engine warms. | Owner reports describe broken hardware, warped or cracked manifolds, and exhaust leaks. A Ram technical bulletin addresses cold-engine ticking from the exhaust-manifold area on specified applications. | Usually requires inspection of the manifold, fasteners, gasket, and surrounding area. Exhaust odor or fumes should not be ignored. |
| Hydraulic lifter and camshaft wear | Tick persists when warm and may be accompanied by a misfire, shaking, vibration, check-engine light, loss of power, or expensive internal repairs. | Owner complaints and narratives repeatedly describe lifter and camshaft replacement or, in some cases, engine replacement. The reports do not establish a fleet-wide failure rate. | Potentially serious internal-engine damage requires prompt diagnosis rather than treatment based on sound alone. |
| Normal injector or mechanical noise | Noise is localized near the upper engine or an injector and occurs without misfire, warning lights, power loss, or other symptoms. | Owner discussions show that some sounds described as a HEMI tick have non-catastrophic sources. | Confirm the noise before ordering a manifold, lifters, camshaft, or complete engine. |
Why does a 5.7 HEMI tick at cold start?
A cold-start 5.7 HEMI tick is more consistent with an exhaust-manifold leak when the sound is strongest immediately after startup, appears to come from one manifold side, and reduces as the engine reaches operating temperature. Broken bolts or studs can allow the manifold-to-head seal to leak, while a warped or cracked manifold may require replacement rather than new hardware alone.
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Stellantis/Ram TSB 09-001-24 describes a cold-engine ticking symptom from the exhaust-manifold location for specified 2019–2024 Ram 1500 vehicles equipped with the 5.7L HEMI MDS VVT or eTorque engine. The bulletin includes manifold replacement operations. A related Ram exhaust-manifold parts bulletin identifies right- and left-hand manifold kits for relevant 5.7L HEMI applications.
Owner reports describe the same general pattern: broken manifold bolts or studs, exhaust leaks, warped manifolds, and a tick that becomes less noticeable after warm-up. These reports are anecdotal, but the existence of an official bulletin means the exhaust-manifold condition is not merely a forum theory. The supplied evidence does not establish one universal reason why every fastener breaks, so explanations that claim a single proven root cause should be treated cautiously.
The term HEMI tick is ambiguous. A cold-only sound near the manifold should not automatically be diagnosed as a failed lifter, and replacing camshaft parts before checking the manifold area can send the repair in the wrong direction. Exhaust odor or fumes add urgency because an exhaust leak can allow fumes into areas where they should not be present.
Is the HEMI tick serious?
A HEMI tick is potentially serious when the noise remains after the engine is warm or appears with a misfire, severe vibration, shaking, check-engine light, sudden power loss, fluid leak, or excessive smoke. A cold-start tick by itself does not identify the cause or prove imminent engine failure, but every new or worsening tick deserves a proper inspection.
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Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →The more concerning owner-reported pattern involves hydraulic lifters and camshaft lobes. Complaint narratives and forum discussions describe persistent ticking followed by cylinder misfires, vibration, warning lights, reduced power, and repairs involving lifter and camshaft replacement. A sound description alone cannot confirm lifter or camshaft damage; the same general noise can originate in the exhaust-manifold area or elsewhere in the engine.
The 2021 Ram 1500 Owner’s Manual states: “All engine failures give some warning before the parts fail.” The manual identifies misfiring or severe vibration, sudden loss of power, unusual engine noises, fuel, oil or coolant leaks, sudden changes in operating temperature, and excessive smoke as important observations preceding engine failure.
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The same manual warns drivers not to operate the engine with low oil pressure and says to shut the engine down as soon as possible if the low-oil-pressure warning appears. Do not continue driving simply because a ticking engine still starts and idles. The correct response depends on the accompanying symptoms and the result of an inspection.
How do I tell if my Hemi tick is lifters or an exhaust leak?
You cannot reliably distinguish a failed lifter from an exhaust leak by listening to a recording or using the phrase HEMI tick as a diagnosis. Temperature, location, accompanying engine symptoms, diagnostic codes, and physical inspection provide a more useful starting point.
| Observation | More consistent with | Recommended next step |
|---|---|---|
| Loudest immediately after a cold start and quieter as the engine warms | Exhaust-manifold leak, broken hardware, warped manifold, or related gasket problem | Inspect the manifold side, bolts or studs, gasket, and manifold condition before authorizing internal engine work. |
| Tick remains when the engine is fully warm | Possible lifter or camshaft problem, although the symptom is not diagnostic by itself | Arrange professional diagnosis rather than assuming the noise identifies a failed component. |
| Tick plus misfire, shaking, severe vibration, check-engine light, or loss of power | More concerning for internal valvetrain damage or another serious engine fault | Minimize continued operation and investigate promptly. Stop immediately for low oil pressure or severe symptoms. |
| Noise seems to come from an injector or upper-engine area with no other symptoms | Possible normal injector or mechanical noise, or another non-catastrophic source | Verify the location and operating condition before purchasing major parts. |
| Exhaust odor or fumes accompany the noise | Possible exhaust leak, including a manifold-area leak | Have the vehicle inspected promptly and avoid dismissing the fumes as normal engine noise. |
A practical diagnostic sequence
- Note when the noise occurs. Record whether the sound is present only during a cold start, changes with warm-up, or continues at operating temperature.
- Identify the apparent location. A sound near one exhaust-manifold side suggests a different inspection path from a sound at the upper engine or injector area. Sound can travel through the engine bay, so location by ear is only a clue.
- Check for companion symptoms. Look for a check-engine light, misfire, shaking, vibration, power loss, unusual smoke, oil or coolant leaks, changes in temperature, or exhaust fumes.
- Retrieve diagnostic codes when appropriate. An automotive OBD2 diagnostic scanner can help retrieve stored or pending fault codes, but code retrieval is preliminary and cannot by itself confirm lifter, camshaft, or manifold damage.
- Inspect the manifold area. A technician should check for broken bolts or studs, gasket failure, a warped or cracked manifold, and signs of escaping exhaust.
- Confirm internal damage before authorizing major work. Lifter and camshaft replacement is a substantially different repair from manifold hardware or manifold replacement. The diagnosis should support the repair scope.
What causes broken exhaust-manifold bolts on a 5.7 HEMI?
The supplied owner reports and Ram bulletins document broken manifold bolts or studs, manifold deformation, and resulting exhaust leaks, but they do not prove one universal cause for every broken fastener. The defensible conclusion is that failed hardware or a failed manifold-to-head seal can produce the characteristic cold-start ticking pattern; the reason a particular bolt broke still requires vehicle-specific inspection.
Fastener extraction can be difficult when hardware is seized or access is restricted. A HEMI broken manifold bolt extraction tool may be relevant to a capable DIY repair, but accessibility varies by Ram model and engine-bay configuration. A difficult extraction can damage surrounding components or turn a hardware repair into a larger job, so professional assistance may be the safer choice.
What year 5.7 HEMI has problems?
No defensible source in this research identifies one universally worst 5.7 HEMI model year. The evidence points to specific complaint narratives and application-specific service information rather than a reliable year-by-year failure ranking.
| Model year or application | Documented source | What can reasonably be said | What cannot be concluded |
|---|---|---|---|
| 2011 Dodge Ram 1500 | CarComplaints.com complaint page | According to CarComplaints.com in its 2026 page access, the page displays 42 complaints under the heading Lifter And Cam Issue. | The count is not a failure percentage, fleet reliability rate, warranty statistic, or proof that every 2011 engine has the problem. |
| 2012 Ram 1500 | CarComplaints.com complaint page | According to CarComplaints.com in its 2026 page access, the page displays 22 complaints under the heading Camshaft Issue And Lifter Lock Up. | The count does not establish how many 2012 trucks were built, how many failed, or whether 2012 is the worst year. |
| 2019–2024 Ram 1500, specified 5.7L HEMI applications | Stellantis/Ram TSB 09-001-24 | The bulletin addresses cold-engine exhaust-manifold ticking and lists repair operations for the specified vehicles. | The bulletin does not say every 5.7L HEMI Ram 1500 in those years has a failed manifold or lifter problem. |
Year alone is not enough when evaluating a used truck. The engine sales code, MDS or eTorque configuration, model, manifold design, geographic specification, service history, current symptoms, and whether the applicable bulletin covers the vehicle all matter. Parts and technical bulletins must be matched to the vehicle identification number and configuration.
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How does MDS relate to 5.7 HEMI lifter problems?
MDS is part of the valvetrain architecture in relevant 5.7-liter HEMI applications, but the available evidence does not justify blaming MDS alone for every lifter or camshaft failure. Stellantis describes Multi-Displacement System operation as deactivating four cylinders during light-load operation to reduce pumping losses and improve efficiency in applicable engines.
Owner reports and legal allegations often connect MDS-equipped valvetrains with lifter concerns. That connection explains why MDS appears frequently in discussions, but repeated discussion is not the same as proof of a single root cause across the entire engine population. A careful statement is: MDS is part of the valvetrain system discussed in many owner reports, but MDS alone is not proven to cause every 5.7 HEMI lifter or camshaft failure.
The manufacturer’s description of the relevant engine technology appears in the Stellantis announcement for the 2026 Ram 1500 5.7-liter HEMI V-8 eTorque engine. Neither that description nor the owner-report evidence supports treating an MDS delete, a particular oil, or an additive as a guaranteed preventive repair.
Can a 5.7 HEMI tick be fixed?
Yes, a 5.7 HEMI tick can be fixed when the actual source is identified, but the repair depends on whether the noise comes from the exhaust manifold, manifold hardware, normal mechanical operation, or internal valvetrain damage. No repair should be promised from the sound alone.
| Confirmed source | Possible repair scope | Important limitation |
|---|---|---|
| Broken manifold bolts or studs with an otherwise usable manifold | Hardware extraction and replacement, with inspection of the gasket and sealing surfaces | Seized hardware and restricted access can make this unsuitable for an inexperienced DIY repair. |
| Warped, cracked, or otherwise failed manifold | Manifold, gasket, and related hardware replacement | A hardware-only repair will not correct a manifold that no longer seals properly. |
| Confirmed lifter or camshaft damage | Internal valvetrain repair involving the affected lifters and camshaft; some owner narratives report larger engine repairs | The scope and cost depend on inspection findings. An oil additive cannot be presented as a proven repair. |
| Normal injector or mechanical noise | No major repair if inspection confirms normal operation | Verify the source before ordering parts. |
If inspection confirms a manifold fault, a 5.7 HEMI exhaust manifold repair kit may be appropriate. Check the vehicle year, model, engine code, manifold side, and MDS or eTorque configuration before purchase. A kit must match the right- or left-hand manifold and the actual repair scope; buying a part based only on the phrase HEMI tick is not sufficient.
Original-style replacement parts, upgraded manifolds, and shorty headers are different choices rather than universally superior solutions. Any aftermarket manifold or header requires fitment, emissions legality, warranty, installation, and configuration checks. The owner reports do not establish that one aftermarket design prevents all future failures.
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How reliable is the 5.7 HEMI?
The 5.7 HEMI cannot be fairly labeled either trouble-free or universally defective from owner reports alone. Owner narratives identify recurring exhaust-manifold and valvetrain complaints, while the lack of a trustworthy fleet-wide failure percentage prevents a precise reliability ranking.
According to CarComplaints.com in its 2026 page access, the 2011 Dodge Ram 1500 Lifter And Cam Issue page displays 42 complaints. According to CarComplaints.com in its 2026 page access, the 2012 Ram 1500 Camshaft Issue And Lifter Lock Up page displays 22 complaints. Both figures are complaint-page counts, not failure rates, sales-adjusted rates, warranty data, or controlled engineering studies.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsComplaint aggregations are useful for spotting repeated narratives because multiple owners describe similar repairs and symptoms. Complaint pages are also self-selected: owners with no problem are less likely to submit a complaint, duplicate or incomplete narratives may exist, and the number of vehicles in the population is not represented by the page count. No researched source supplies a defensible percentage of all 5.7L HEMI engines that develop manifold, lifter, or camshaft problems.
What maintenance can reduce 5.7 HEMI risk?
Following the vehicle-specific oil specification, checking the oil level, observing oil-pressure warnings, and following the maintenance instructions are sensible practices, but maintenance cannot guarantee that a 5.7 HEMI will avoid manifold or valvetrain problems.
The owner’s manual supports using the specified oil quality and viscosity and responding to low oil pressure or other serious warnings. The manual does not support claiming that a particular oil brand, additive, shortened interval, or MDS delete prevents all lifter or camshaft failures. Forum recommendations for specialty oils and additives should be described as owner preferences or anecdotes, not manufacturer-proven fixes.
For vehicle-specific documentation, distinguish a basic owner’s manual from factory service information. Ram’s official publication resources can help identify the correct documentation, but a 2021 Ram 1500 manual should not automatically be treated as the correct manual for a different year, model, or market.
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What should a buyer inspect before purchasing a used 5.7 HEMI?
A buyer should listen to the engine from a cold start, check whether the noise changes as the engine warms, look for warning lights or misfire symptoms, and verify that the vehicle receives a configuration-specific inspection before purchase.
- Ask that the engine be cold when the inspection begins; a warm engine can hide a noise that is most apparent immediately after startup.
- Listen for a tick that appears to come from one manifold side, but treat location by ear as a clue rather than a diagnosis.
- Check for shaking, vibration, a check-engine light, reduced power, unusual smoke, fluid leaks, or exhaust odor.
- Retrieve diagnostic codes as a preliminary step, not as proof of a particular failed part.
- Review repair records for manifold hardware, manifold replacement, lifter work, camshaft work, or engine replacement.
- Confirm the vehicle year, model, engine sales code, MDS or eTorque configuration, and geographic specification before comparing the vehicle with a service bulletin or parts listing.
- Have a qualified technician inspect the vehicle before purchase if the noise is persistent, worsening, or accompanied by any warning symptom.
Bottom line
The most common problems with the 5.7 Hemi engine are not one universal defect. Cold-start ticking is strongly associated with exhaust-manifold hardware or manifold leaks on specified Ram applications, while warm-persistent ticking with misfire, vibration, warning lights, or power loss raises concern about lifter-and-camshaft damage. Owner reports reveal recurring patterns, not a fleet-wide failure percentage. Diagnose the source before buying parts, and treat serious warning symptoms as urgent.
Frequently Asked Questions
Do all 5.7 HEMI engines have lifter problems?
No. Owner reports describe recurring lifter and camshaft failures, but no reliable fleet-wide statistic proves that all 5.7 HEMI engines have lifter problems. A ticking sound can also come from an exhaust-manifold leak or normal injector and mechanical noise.
What year 5.7 HEMI has problems?
There is no defensible single worst model year in the available evidence. Complaint pages show 42 complaints for a 2011 Dodge Ram 1500 lifter-and-cam issue and 22 complaints for a 2012 Ram 1500 camshaft-and-lifter issue, while a Ram bulletin covers cold-start manifold ticking on specified 2019–2024 Ram 1500 applications. Those figures and applications do not establish a year-specific failure rate.
Can a 5.7 HEMI tick be fixed?
A 5.7 HEMI tick can be fixed when diagnosis identifies the source. Manifold hardware or a failed manifold may require extraction and replacement, while confirmed lifter-and-camshaft damage requires internal engine repair. A repair cannot be selected reliably from the sound alone.
Is the HEMI tick serious?
Minimize driving and seek prompt diagnosis when ticking is accompanied by a misfire, shaking, severe vibration, a check-engine light, power loss, unusual smoke, fluid leaks, or exhaust fumes. Shut the engine down as soon as possible if the low-oil-pressure warning appears.
Quick Recap
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