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- Tappets (lifters) require adjustment. Even hydraulic ones need a flush periodically, especially when inferior oils/ a mix of mineral and synthetic/long periods between oil changes or the engine not been used for long period.
- Timing Chain stretch (early large engines, commercial engines, small lower end car engines, motorcycles).
- Timing belt/auxiliary (alternator/serpentine/Power Steering belt) idler or adjuster bearings are becoming quite common.
- Primary drive (motorcycle engine derived vehicles), clutch basket (Ducati motorcycle).
- Inertia (throwout) clutch (twist and go, variomatic etc).
- Clutch cover/clutch release bearing.
- Engine mounting, exhaust bracket failure.
The easiest ways to find the general source of rattles is either by observation or get a long screwdriver or thin stick, put one end to different parts of the engine and press the other just in front of your ear where the jawbone hinges. BEWARE OF MOVING/ROTATING PARTS. Where the noise is loudest and in time with the rattle in the other ear is the area that needs your attention.
What else can I help you with?
What are the symptoms of a bad throttle position sensor in a 91 Saturn sl1?
A bad throttle position sensor, on your 1991 Saturn, will cause the engine to run rough when it is idling. The engine will run normally at higher speeds.
Why would engine that was idling then suddenly die?
water in the fuel can cause an idling motor to sputter and/or die.
What could cause a rattle or knocking in front end of Dodge Ram B250 not when idling but when going slow?
DONT DRIVE HER! I did...and she dropped a driveshaft. Tow her to a trusted shop and have them check out the drivetrain. Good news is your engine should be a solid s.o.b!
What can cause shaky steering wheel and front end while idling?
Engine miss.
Why would a 1999 Mitsubishi eclipse have a very high rev when the engine is hot and jerk when idling or at constant speeds but accelerate smoothly?
Check the compression for the cylinders on the Eclipse. If there is?æa leak in one of the cylinders then this could cause the jerking.
What could cause erratic idling and vibration at low speeds and during acceleration on a 2001 Dodge Ram the check engine light is also on?
have u had the check engine light checked for the code? if not take it to auto-zone parts house and they check it free. also check for a vacuum leak
Is engine rattle a sympton of a blown head gasket?
It can be and it can be something else. A good professional mechanic can diagnose the cause.
How do you fix the engine surge in your v6 1984 Ford Ranger 4x4?
Check your vacuum lines this usually the cause for a surge in engine speed when idling or running.
What would cause your 1994 351 engine to increase or decrease rpms intermittently while idling and driving?
air leek
Does the idler pulley cause rough idling?
No. The idler pulley only maintains tension on the serpentine belt. A faulty idler pulley can cause noise and a loose tensioner arm can cause belt slipping but other than having a similar name, it has nothing in common with engine idling.
What can be the cause while driving and when the car comes to a stop the engine revs for a few seconds and goes back to normal idling mode its a Opel Corsa classic 1400.?
It is the idling sensor on top of the intake
What is the less likely cause of an engine to hunt and surge at top no load speeds?
The price of pineapples in Hawaii is less likely to cause an engine to hunt or surge.
