Question about 2002 Cadillac Deville

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1. I am not sure its the lifters, but my 2002 cadi deville dhs is making a kind of rattling tick sound when I accelerate epecially between 15 and 25 mph. If not the lifters, what else might it be? Approximate cost? 2. Also the rear window shade is stuck...the button makes a click sound like it wants to work...does the motor need lube or is it shot?

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As far as the window motor,electric motors do not require lube.If you have an electrical measuring tool,it would be easier to try to make sure the switch is working,even though it is most likely the motor,but stranger things have happened.As far as the ticking,how long has it been doing it?Along with the lifters there are tappets,so it could be one or the other or even both.They contact each other and occassionally do need adjustment.How many miles do you have?2002 seems awful young to be having that alredy.I have a 95 with 135k miles on it that doesn't tick.Anyhow,if the ticking isn't too bad,it can wait.It will require at least a partial teardown of the engine and the way thingsare crammed in cars thes days,they could easily be anywhere between 5-10maybe 12 hours labor.You could call around a couple of shops,at least 1 anyhow,and they will at least tell you the labor time "recommended" for charge by the manufacturer.Someone is always willing to give a fre estimate as it attracts business and should be reasonably accurate.Also consider parts replacements if they are too worn to be adjusted.Anyhow,sorry to chew off your ear but I like to provide as much as possible for you to make a good decision.Here is a link which tells the relationship between lifters and tappets.I usually don't use wikipedia,but this is definitely accurate.On wikipedia,anyone can go in and change the info.
Good luck! Greg
http://en.wikipedia.org/wiki/Tappet

Posted on Aug 26, 2010

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