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97 caravelle hydrolic lifters are making a noise wen engine is warm.what must i do to get it quit

Posted by isaac philander on

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Adam Hoggatt

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  • 18 Answers

How is your oil level? is the oil light on or if you have an oil pressure guage what is your oil pressure.

Posted on Feb 15, 2013

  • isaac philander Feb 15, 2013

    oil level is fine and pressure just resently replaced oil pump.my mechanic suggest i must change to syntetic oil

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5 Related Answers

Anonymous

  • 35 Answers

SOURCE: 1993 BMW 42m Tapping in Engine

sounds like a weak oil pump, but that could be indicative of a worn engine, i would replace the oli pump first to rule it out.

Posted on Mar 30, 2009

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Anonymous

  • 382 Answers

SOURCE: hydrolic lifters making a taping noise

First thing to do is change oil and filter. Hopefully it has not done this long and has hard faced the shims. Good luck and have a good day.

Posted on Apr 05, 2009

Anonymous

  • 8 Answers

SOURCE: ticking when cold

It could also be the infamous "Piston Slap" common in 1999-2002's.
GM "standardized" pistons or something like that and they did not fit the cylinders tight enough. The pistons "slap" the cylinder walls and make a tapping sound for the first few minutes until the pistons expand to fit. GM would not fix it and says it does not hurt the longevity of the motor ( yeah ri--ght! ) Do a google search for piston slap.
Oil level would help if it is a lifter ticking but will do nothing if it is the pistons slapping the walls. My 02 silverado has been doing this since almost new and the above description is straight from GM and a few visits to the dealership while under warranty.

Posted on Jul 05, 2010

John Jon

  • 1114 Answers

SOURCE: tapping noise inthe engine. lifter? Valve?

You have a valve lifter worn you should have it repaired soon.

Posted on Dec 25, 2010

alicantecoli

Colin Stickland

  • 22485 Answers

SOURCE: 1993 iSUZU TROOPER HYDROLIC LIFTER

no what you do is to add a half litre of diesel to the oil and 3 good squirts of fairy liquid ,got to be fairy and no cheap one.then run vehicle around for a day or so and the noise will stop ,Then change oil and filter and from then on change oil every 5000miles and a oil filter every third oil change ,use a diesel/petrol oil the cheapest you can buy and the diesel /petrol oil will have detergent in it which will keep the inside of the engine clean and prevent clag from forming which is what is causing your hydraulic tappet stick thus making a noise .

Posted on May 04, 2011

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Hydrolic lifters making a taping noise

First thing to do is change oil and filter. Hopefully it has not done this long and has hard faced the shims. Good luck and have a good day.
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Hydrolic Valve Lifters.(Vanos) Replacing

Hi

The lifters can be cleaned by getting the engine nice and hot and then adding an engine flush to the oil and leaving the engine running at a high tickover for about 15 to 20 minutes, and then giving the car an oil and filter change.

Are you sure its the tappets and not the timing chain?

Regards

Geordie
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