Question about Cars & Trucks
Have a 2002 grand Cherokee 4.7 the secondary timing chain tensioners are bottoming out on every rev a new timing chain set was put in not to long ago motor has 117000 miles on it
The tensioners may have weakened springs behind them.. need to see about replacement before the chain jumps time..
Posted on Dec 25, 2013
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Posted on Jan 02, 2017
Check this link & scroll down to your engine. Click on picture to expand.
Posted on Feb 03, 2009
each gear has a mark on it from the factory that line up with a corrrsponding mark on the engine some times they are hard to find but if you look hard enough you will find them they all must line up there is no margin for error or it will not start like now good luck Lindz
Posted on Mar 25, 2009
If you haven't changed the plugs or had the fuel system cleaned, now would be a good time to do it. The number 1 culprit for rough idles is dirty injectors or plugs. You can try an injector cleaner in a can (or bottle) for under $10 and see if it helps, and then work from there. If there isn't any improvement then if you are able to, check the plugs for any gunky buildup and if you find a bad plug, make sure you replace them all (or have them replaced) at the same time.
Posted on Aug 03, 2009
This could be an issue with the shift solenoid , but can also be caused by low fluid due to a leak, check your fluid. Is there a check engine light on, if there is it could be a solenoid issue.
Posted on Aug 26, 2009
First, if the noise is from the upper part of the engine and is more of a tapping than a knock, likely you have a problem in the valvetrain, most often a bad lifter or worn rocker arm. If the noise is low, deep inside, the noise is from a bearing. This is generally accompanied by lower than normal oil pressure. Regardless of the underlying cause, correcting the cause will not stop the knock. To do that correctly, the engine needs to be removed and all crankshaft bearings and the crankshaft itself need to be replaced (crank can sometimes be "undercut" and thicker bearing shells can be used depending upon the amount of wear.) If caught very early, sometimes only one bearing can be replaced in-car, but in 99% of all cases I have ever seen, most will fail again, sometimes more severely if done this way.
Posted on Dec 10, 2009
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