Tl*the contact owns a 2007 Chevrolet silverado 1500. While driving 65 MPH, the vehicle lost power. The driver was able to safely pull off the road. The vehicle failed to restart and was towed to the dealer. The dealer found a short in the cap and rotor, in which a hole was completely burned through the rotor. The vehicle was under warranty and repaired at no cost. The contact filed a…
2007 Chevrolet Silverado engine problems
severe 59 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Failure mileage
Complaints
59
Recalls
0
Avg fix
$3,100
8fires
When does it fail?
Of the 59 engine complaints filed for the 2007 Chevrolet Silverado, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 59 engine complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
No new NHTSA engine complaint has been filed on this vehicle in over 18 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: The 2007 Silverado engine has multiple serious issues: AFM lifters fail routinely (40k–160k miles) and GM won't replace all eight at once; several vehicles caught fire while parked; exhaust bolts snap off and destroy catalytic converters; and electronics frequently cause stalling or reduced-power limp mode. These are recurring, expensive repairs often beyond warranty, and GM has resisted recalls despite acknowledging known defects.
The 2007 Silverado's engine reliability is heavily compromised by a handful of persistent, expensive failures. Active Fuel Management (AFM) lifter failure is the most common complaint—lifters stick or seize between 40,000 and 160,000 miles, causing tapping, power loss, rough idle, and smoke. GM has service bulletins acknowledging the issue but won't recall the truck or replace all eight lifters together; dealers only swap out the failed ones, meaning owners face repeat failures and high repair bills after warranty ends. One owner had a lifter fragment jam the oil pump mid-drive on a highway.
Excessive oil burn is another pattern: owners report losing 1–1.5 quarts every 2,000–2,500 miles despite regular maintenance and no visible leaks. Dealers run extended consumption tests and tell owners this is within spec; GM refuses to cover repairs. Several engines have caught fire while parked or at low speed, with fire investigators finding no arson or fraud—just spontaneous engine compartment ignition.
Exhaust manifold bolts snap off and remain embedded in the cylinder head, breaking the seal and failing emissions tests. This affects all V-8 engines (4.8L, 5.3L, 6.0L), is not covered by warranty, and is not subject to recall despite widespread occurrence.
Electronic issues also stand out: "Reduce Engine Power" limp mode appears without clear cause, and some trucks stall at highway speeds with dealers unable to fix after 15+ visits and replacement of throttle body, ECM, TCM, sensors, and wiring. Throttle response is sluggish and unpredictable, making low-speed control difficult in parking lots and downhill. Owners report having to place the truck in Neutral to maintain safe downhill braking.
Camshaft failures occur prematurely—one truck needed three camshaft replacements by 100,000 miles—yet GM refuses engine replacement under warranty even while admitting camshafts should last the vehicle's life. These are not minor inconveniences; they are high-dollar repairs that appear to exceed manufacturer design standards.
Same Chevrolet Silverado engine reports on nearby years: 2005 · 2006 · 2008 · 2009 · 2010
Failure modes owners describe
Active Fuel Management (AFM) Lifter Failure
AFM/DOD lifters fail prematurely, typically between 40,000–160,000 miles, causing lifter tapping, loss of power, rough running, and smoke. Owners report that GM replaces only failed lifters rather than all eight lifters at once, leading to repeat failures. Camshaft wear and damage follow lifter failure; in one case a lifter fragment seized the oil pump mid-drive.
When: 40,000–160,000 miles; commonly around 50,000+ miles
Symptoms owners cite: lifter tapping or knocking noise; loss of engine power; rough running and smoking; check engine light and misfire codes; low oil pressure warning; engine stalling while driving
Codes mentioned: P0300 (random misfire), P0303 (cylinder 6 misfire)
Repairs/costs cited: Lifter replacement (partial or full set), camshaft replacement, oil pump replacement in severe cases. Owners report costs in thousands of dollars, especially if repair occurs after warranty expiration.
Recalls/TSBs owners mention: GM acknowledges the issue via service bulletins but refuses to issue a recall, choosing instead to replace only failed components on a case-by-case basis. Some owners report GM offering partial buyback ($2,000) but refusing to cover repair costs.
Excessive Oil Consumption
Engine consumes oil at a rate exceeding what manufacturers typically consider normal, often 1–1.5 quarts per 2,000 miles or worse. Owners report low-oil warning lights illuminating every 2,500–3,000 miles despite regular maintenance. Dealer testing concludes the consumption is 'within spec,' and GM refuses warranty coverage.
When: Starting at 40,000–71,000 miles; persists to 100,000+ miles
Symptoms owners cite: low oil warning light on dashboard; visible low oil level on dipstick; need to add oil between service intervals
Repairs/costs cited: No permanent repair identified. Dealers performed oil consumption tests (sometimes multiple); no parts replacement stopped the issue. Owners report adding 1–2 quarts every 2,000–2,500 miles.
Recalls/TSBs owners mention: GM states consumption of up to 1 quart per 2,000 miles is within specification and acceptable. Corporate refuses to contradict dealership assessments or cover repairs. No recall or extended warranty program mentioned by complainants.
Engine Fire (Parked or Low-Speed)
Multiple reports of fires originating in the engine compartment while vehicles were parked or driven at low speed. Fire reports confirm origin in engine area, running gear, or under-hood wiring. Vehicles were not improperly operated; fires occurred spontaneously hours after parking or during normal low-speed driving.
When: At 6,500–130,000 miles; fire occurred while parked or at low speed
Symptoms owners cite: visible smoke and flames from engine compartment; burning plastic smell; fire while vehicle parked with ignition off
Repairs/costs cited: Vehicles declared total loss by insurance. Fire departments and insurance investigators found no evidence of arson or fraud.
Recalls/TSBs owners mention: No manufacturer response recorded in complaints. Vehicles destroyed before dealer inspection in most cases.
Exhaust Manifold Bolt Breakage
Exhaust manifold attachment bolts break off into the cylinder head, breaking the seal. This causes exhaust leaks, failed emissions tests, and catalytic converter failure. The issue affects all V-8 engines (4.8L, 5.3L, 6.0L) and occurs on well-maintained, low-use trucks. Bolts corrode and snap prematurely without owner neglect.
When: 73,000–84,000 miles
Symptoms owners cite: ticking or tapping noise from exhaust; exhaust leak visible or audible; failed emissions inspection; fractured bolt heads remaining in cylinder head
Repairs/costs cited: Bolt removal, cylinder head repair, catalytic converter replacement often necessary. Owners report this is expensive work to correct a design flaw.
Recalls/TSBs owners mention: No TSB (Technical Service Bulletin) or recall issued despite the widespread nature of the problem. Bolts are not covered under powertrain warranty.
Reduced Engine Power / Stalling (Electronic)
Engine enters limp mode or stalls without warning, triggered by various sensor and electronic control faults. Repeated dealer visits, multiple component replacements, and GM engineer involvement have failed to resolve the issue. Vehicles stall at highway speeds and in stop-and-go traffic, creating a safety hazard.
When: 6,000–16,000 miles; recurring intermittently
Symptoms owners cite: check engine light and 'Reduce Engine Power' message; sudden loss of engine power while driving; violent jerking; engine stalling without warning; vehicle loss of power while idling
Codes mentioned: P0600 (CAN bus fault), engine sensor faults
Repairs/costs cited: Multiple parts replaced without permanent fix: throttle body, engine control module (ECM), transmission control module (TCM), MAF sensor, O2 sensor, wiring harness, speed sensor, purge valve, HBAC module, fuse box, and more. One vehicle visited dealer 15+ times.
Recalls/TSBs owners mention: GM engineer assigned; still unable to repair. Dealers state 'vehicle within specs' and 'cannot be fixed.' GM refuses to buy back vehicle or offer lemon-law assistance.
Throttle Stick / Poor Idle Control
Throttle responds slowly or sticks, causing delayed deceleration and unpredictable idle. Vehicle maintains elevated RPMs (800–1,800) when foot is off the accelerator, creating difficulty in controlling speed at low speeds and downhill. Dealer attributes behavior to 'sail speed' feature of AFM and 'California emissions standards,' refusing to adjust or fix.
When: Ongoing from early ownership
Symptoms owners cite: delayed throttle response and slow deceleration; engine maintains 800–1,800 RPM idle despite foot off accelerator; difficulty slowing down in parking lots; vehicle continues uphill 30–50 feet before slowing; confused transmission shift points; difficulty controlling downhill speed
Repairs/costs cited: Dealer inspection only; no repair offered. Owner resorts to placing vehicle in Neutral downhill to maintain control.
Recalls/TSBs owners mention: Dealer states behavior is normal design operation per California emissions standards and cannot be adjusted or fixed.
Camshaft and Lifter Wear (Multiple Failures)
Camshaft wears and requires replacement multiple times within engine life, far sooner than manufacturers specify. Combined with lifter failures, this results in three camshaft replacements by 100,000 miles. GM admits camshaft should last the life of the vehicle but refuses to replace engine under warranty.
When: 40,000 miles (first failure), 90,000 miles (second failure)
Symptoms owners cite: engine tapping noise from valvetrain; lifter noise and breakage; piece of lifter caught in oil pump and stopped it mid-drive
Repairs/costs cited: Camshaft and lifters replaced twice within 50,000 miles; GM refused engine block replacement. Owner still has original defective engine block.
Recalls/TSBs owners mention: GM and dealer admitted camshaft should last vehicle lifetime but refused full engine replacement. One dealer suggested 'bad lot' of camshafts despite two separate failures.
Piston and Wrist Pin Failure
Piston and wrist pin make knocking noise; dealer replaces them twice in quick succession, but the knocking returns both times. Dealer refuses further repair; GM offers only $2,000 toward new vehicle, no diagnosis of underlying cause.
When: 16,000 miles (first failure), recurring before 38,000 miles
Symptoms owners cite: knocking noise from engine
Repairs/costs cited: Piston and wrist pin replaced twice with no permanent fix. Dealer refused third repair.
Recalls/TSBs owners mention: GM offered $2,000 toward new vehicle purchase only; no assistance for diagnosing or repairing the recurring problem.
Engine Stalling (Various Causes)
Engine stalls without warning during normal driving, both on highways and at low speeds. Towing to dealer sometimes results in undiagnosed return or failed repair. In some cases, the vehicle fails to restart.
When: 6,000–20,000 miles; also at 150,000+ miles
Symptoms owners cite: engine stalls at 65 MPH without warning; engine stalls at 35 MPH without warning; check engine light (in some cases); inability to restart
Repairs/costs cited: One repair involved a burned-through cap and rotor (short in distributor); another required engine replacement. In several cases, dealer unable or unwilling to diagnose.
Recalls/TSBs owners mention: Manufacturer notified in some complaints but offered no assistance. One case repaired under warranty (burned rotor/cap).
Cylinder Misfire (Recurring)
Specific cylinder misfires, notably cylinder 6, persist despite replacement of spark plugs, coil packs, and other components. Multiple independent repair attempts fail; one mechanic recommended engine replacement as the only solution.
When: Unknown mileage (low miles per owner account)
Symptoms owners cite: check engine light; cylinder 6 misfire (P0303); rough running
Codes mentioned: P0303 (cylinder 6 misfire)
Repairs/costs cited: Spark plugs and coil packs replaced without resolving issue. Independent mechanic recommended engine replacement as only fix.
Recalls/TSBs owners mention: Not stated in complaint.
Serpentine Belt Knocked Off by Road Debris
Serpentine belt dislodged by a stick or road debris encountered at low speed, causing immediate loss of power steering and power brakes. Engine sits low (10 inches back from normal position), allowing road debris to enter and strike the belt.
When: At low speed (approximately 5 MPH)
Symptoms owners cite: loss of power steering; loss of power brakes; serpentine belt dislodged
Repairs/costs cited: Belt replaced under warranty.
Recalls/TSBs owners mention: Dealer replaced belt but stated no design change could be made to prevent recurrence.
Fan Resistor Module Fire Hazard
A/C fan resistor module overheats and melts, with the wiring harness also melting from extreme heat. Burning plastic smell and fire hazard precede failure. No blown fuses detected, but the module and harness pose an ignition risk inside the cab.
When: 30,000–75,000 miles
Symptoms owners cite: A/C fan quits functioning; burning plastic smell; resistor module extremely hot to touch; wiring harness melted
Repairs/costs cited: Resistor module and wiring harness replacement required. Owner performed emergency measures (pulled fuses) to reduce fire risk.
Recalls/TSBs owners mention: Not recorded in complaints.
EVAP Solenoid Vent Design Flaw
EVAP solenoid vent system fails, producing gross leak code. GM acknowledges this is a design flaw and offers a redesigned system, but the original design has no replacement parts; consumers must buy entire new vent assembly and modify heater hose routing to filter debris.
When: Unknown mileage
Symptoms owners cite: EVAP solenoid vent gross leak code; emissions test failure
Repairs/costs cited: Entire solenoid vent system replacement required plus 5/8-inch heater hose reroute to prevent debris ingestion.
Recalls/TSBs owners mention: GM acknowledges the design flaw but offers no recall or warranty coverage for retrofit; consumers must pay for replacement parts and labor.
Software Change (2008 Powertrain Software Loaded Without Consent)
Dealer loaded 2008 powertrain software into a 2007 truck during routine accessory installation without owner permission. Software added speed limiter and changed stability control, reducing top speed. GM and dealer refused to revert to original 2007 configuration, claiming the change was necessary for Goodyear tire and truck design safety. Owner received no recall notice and believes this is a cover-up.
When: At dealership during installation of aftermarket parts
Symptoms owners cite: reduced maximum vehicle speed; speed limiter engaged; stability control behavior changed; reduced performance from 5.3L V-8
Repairs/costs cited: Software reflash refused by dealer and GM.
Recalls/TSBs owners mention: GM and dealer stated change was necessary for safety with Goodyear Wrangler tires and 2007 truck design; refused to restore original configuration.
Engine Control Module (ECM) Wiring Disconnection
ECM wiring becomes disconnected from plastic insulation, causing misfiring and stalling. Owner self-diagnosed and repaired the wiring issue.
When: 63,000 miles
Symptoms owners cite: engine misfire; engine stalling
Repairs/costs cited: Owner replaced ECM wiring harness.
Recalls/TSBs owners mention: Not stated; owner performed repair.
Exhaust System Vibration at Idle
Exhaust vibrates at 1,200–1,400 RPM, causing whole truck to vibrate and moan. Owner believes premature exhaust failure will result from chronic vibration.
When: Unknown mileage
Symptoms owners cite: exhaust vibration at 1,200–1,400 RPM; whole truck moans and vibrates; audible vibration noise
Repairs/costs cited: Not repaired; complaint filed.
Recalls/TSBs owners mention: Not stated.
Synthesized from 59 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 1 most recent
Had engine trouble with your 2007 Chevrolet Silverado?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2007 Chevrolet Silverado?
It's a meaningful issue. 59 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Across the 47 complaints that reported odometer mileage, most engine failures cluster between 20,000 and 99,935 miles, with the median around 63,000. A quarter of owners report trouble before 20,000; a quarter make it past 99,935. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2007/Chevrolet/Silverado.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.