Car problem reports

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Problem with your car? See what our experts say or submit your own.

Most reported car problems

 

Verified for the GMC Rally Wagon 3500

The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Our technicians tell us the misfire may or may not be felt while driving. They further recommend that both cylinder heads be removed and thoroughly inspected and repaired as necessary.

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Verified for the Volvo V70 XC

A broken vacuum hose near the power steering pump deteriorates and can cause a rough idle and the Check Engine Light to illuminate

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Verified for the Chrysler New Yorker

A tappet/lash adjuster noise may be noted from 3.0L engines. Proper testing of the valve lash adjusters should be performed before replacing any parts. Our technicians tell us a full crankcase of clean engine oil is necessary before determining if any lash adjusters are bleeding down and causing a noise concern.

 

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Reported by it_wasnt_me for the Nissan Maxima

Service Engine light came on. Took it to Auto-Zone initially. The diagnostic tool pointed to the EGR valve. I then took the car to a Nissan dealership who advised me it was indeed the EGR valve "stuck in the open position" along with a bad bank 1 convertor. Now, according to the dealership the engine is burning oil. Time for a second opinion.

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Verified for the Toyota MR2

The Ignition Coil, pick-up coil, and radio noise suppressors inside the Distributor are prone to failure. Our technicians recommend to replace the distributor with a complete genuine Toyota distributor if any of its components fail.

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Verified for the Mercedes-Benz CLS500

The early versions of the central gateway module (which allows different systems to communicate with each other) have software problems. 

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Verified for the Hummer H2

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

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Verified for the Mercedes-Benz 600SEC

The bushings for the shifter lever wear out to the point where they break and fall out. This causes excessive movement (loose feel) in the shifter lever and a clanging-type noise when changing gears.

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Verified for the Chevrolet Impala SS

A Loose or worn gas cap may cause Check Engine Light to illuminate.

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Verified for the GMC Vandura 3500

The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Our technicians tell us the misfire may or may not be felt while driving. They further recommend that both cylinder heads be removed and thoroughly inspected and repaired as necessary.

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Verified for the Cadillac DTS

One or more of the power window regulators (one in each door) may fail causing the window to fall into the door and not roll up.

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Verified for the Chrysler New Yorker

Engine oil leaks may develop from the following areas: Valve cover gaskets, cam plugs at rear of the cylinder head, cam seals, front crankshaft seal, and the oil filter bracket. Leaking seals and gaskets should be replaced. Due to mis-machining of the mating surfaces, as special gasket is required to correct the oil filter bracket leak.

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Verified for the Toyota MR2
The timing belt tensioners may make a rattling noise at a higher mileages. This is due to the adjustment being at its limit. Our technicians tell us that the range of the adjuster may be lengthened by elongating the slot where the spring attaches by 2-3 mm to remedy this problem.
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Verified for the Volkswagen EuroVan

Air flow and oxygen sensor failures are common and can cause drivability concerns.

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Verified for the Mercedes-Benz CLS500
Many software updates are available for the different computer systems, but if the vehicle is out of warranty, it may cost money to receive the updates (unless it is a recall). Some updates may be dealer-only, but a well-equipped independent shop can usually provide updates as well.
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Verified for the Mercedes-Benz E300

Due to age and sun exposure, the interior wood trim cracks and the finish gets a cloudy haze. Replacement if the trim would be the most common solution to the problem.

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Verified for the Mercedes-Benz 350SD

The bushings for the shifter lever wear out to the point where they break and fall out. This causes excessive movement (loose feel) in the shifter lever and a clanging-type noise when changing gears.

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Verified for the Mercedes-Benz R63 AMG

A vibration felt through the center floor of the vehicle can be caused by driveshaft flex discs, which crack and shred, causing excessive driveshaft movement. Not repairing these can cause damage to the driveshaft center support bearing, or, in the worst case scenario, damage to the transmission or differential.

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Verified for the Mercedes-Benz 500SEC

A refrigerant leak may develop from one or more of the following AC components: AC compressor, hose manifold for the compressor, or the evaporator core. The loss of refrigerant can cause poor AC performance. Our technicians tell us that proper leak diagnoses should be performed in order to determine the cause of any refrigerant loss.

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Verified for the Toyota MR2
The idle air control motors tend to become carboned up at around 100,000 miles and can cause a start and stall and/or stalling at stop sign problems. Our technicians tell us that many times these motors can be cleaned, however, the sure bet is to replace the idle air control motor and clean the throttle body.
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Verified for the Chevrolet Silverado 1500

The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Our technicians tell us the misfire may or may not be felt while driving. They further recommend that both cylinder heads be removed and thoroughly inspected and repaired as necessary.

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Verified for the Volvo V70 XC

The secondary air pump may fail causing the check engine light to illuminate. The cause is often a failure of the air pump check valve that contaminates the air pump with exhaust gas/moisture.

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Verified for the Chrysler New Yorker

3.0L engines may develop an excessive oil consumption issue. Blue oil smoke may be noted from the exhaust during deceleration conditions (high engine vacuum). Our technicians tell us that this condition can be caused by valve guides dropping out of position. Updated valve guides with a revised snap ring grove are available to correct this issue.

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Reported by AIRMANBEAR for the Chevrolet HHR

THIS CAR HAS A RELAY FOR THE STARTER .. IF YOU DON'T KNOW WHICH ONE IT IS... PUSH ON ALL THE RELAYS AND FUSES ( UNDER THE HOOD ,DRIVERS SIDE, IN A BLACK BOX.. REMOVE COVER CAREFULLY ) AND YOU MIGHT FIND ONE THAT IS A BIT LOOSE .. THIS HAPPENED TO MY BRAND NEW HHR.. I HAD TO INFORM MY DEALER WHO NEVER HEARD OF THIS PROBLEM...
DO THIS BEFORE YOU REPLACE THE STARTER OR BATTERY...

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Verified for the Mercedes-Benz E420

The bushings for the shifter lever wear out to the point where they break and fall out. This causes excessive movement (loose feel) in the shifter lever and a clanging-type noise when changing gears.

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Verified for the Mercedes-Benz CLS55 AMG

A vibration felt through the center floor of the vehicle can be caused by driveshaft flex discs, which crack and shred, causing excessive driveshaft movement. Not repairing these can cause damage to the driveshaft center support bearing, or, in the worst case scenario, damage to the transmission or differential.

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Verified for the Scion xA
Our technicians recommend replacing the shim kits when replacing the brake pads.
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Verified for the Mercedes-Benz 600SEC

Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower motor.

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Verified for the Hummer H2

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

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Verified for the Chevrolet Lumina APV

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine  with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.

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