Engine Vibration

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04-27-2008, 06:04 PM

1999VDP

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Engine Vibration

Iown a 1999 VDP and I amfeelingan engine vibration between 800 and 1,100 RPM's. The vibration is very slight and is present whether the car is in gear and moving or in neutral or park. Below 800 the engine is very smooth and above 1,100 the engine is also very smooth. It is mostly noticable in stop and go traffic. The car performs well on the highway, runs smooth and accelerates quickly. Anyone have a similiar experience? This is the only Jaguar I have ever driven, so I have not benn able to make a comparison. Could this be normal?

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04-28-2008, 07:53 PM

jag_genius

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Location: Pompino Beach , FL

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RE: Engine Vibration

not really normal..you can unbolt your torque converter.. and turn it 1/3 and rebolt it and see if it goes away..

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04-29-2008, 05:12 AM

1999VDP

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RE: Engine Vibration

Thanks for the tip, I'll try turning the torque converter. Is this because you feel it could be a balancing problem? I have been thinking the drive chain.

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04-29-2008, 07:51 PM

jag_genius

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RE: Engine Vibration

yes sounds like someething is out of balance have had it on newer xj's.. not really drive train since it does it when at a stop

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04-30-2008, 04:44 AM

1999VDP

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RE: Engine Vibration

Any chance this vibration could be from the timing chain?

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04-30-2008, 05:18 AM

1999VDP

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RE: Engine Vibration

Jag_genius, you mentioned you had this vibration on newer xj's. Any information on what it was on thoses cars, timing chain or torque converter? If it is the torque converter what will happen if I do not have it fixed. It only seems to happen at around 800 to 1,100 rpm's

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04-30-2008, 08:10 PM

jag_genius

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RE: Engine Vibration

everything in drive line is balanced by itself and shud work together with no balance problems.. had a torque converter out of balance and when moved it then bolted it up it got better so i replaced the torque converter and it was gone..
if it's slight dont really think it can do any damage.. but have also seen an engine out of balance internal parts out of balance.. which dint really do any damage just annoyed the customer.. never seen a timing chain have a vibe.. unless it rattles like crazy and it 's about to blow.. any noise form chain area.. ?

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04-30-2008, 08:11 PM

jag_genius

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RE: Engine Vibration

hard to tell without actually driving the car.. something like that has to be felt... to diag it.

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05-02-2008, 06:35 AM

1999VDP

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RE: Engine Vibration

No noise in teh engine compartment that I can detect. If it is the timing chain would it only be felt at a low rpm and then be smooth below and above that rpm. Starting to think it is a balancing issue with the torque converter and not teh timing cvhain.

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