truck shakes when idling
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2003 Cadillac Escalade EXT
Question: How do I know if I need a tune up?
Answer #1Jim Taddei December 23, 2010, 13:11Master
There is no such thing as a "tune-up" for late model vehicles. Maintenance items such as spark plugs, filters, and fluids should be replaced at the intervals suggested by the manufacture. Your "shaking" condition should be properly diagnosed before any repairs are attempted. Performing basic maintenance to try and correct a problem does not work very well in most cases.
Replybigdaddyhtown, December 28, 2010, 09:33Rookie
How much should a diaganois cost on my vehiche.I have 90,000 miles on the vehicle and no major repair.I change oil ,air filter and fuel filters on regular basis and use premium shell fuel.
ReplyJim Taddei, December 28, 2010, 10:05Master
If the Check Engine light is on diagnoses should begin there. If the light is not on the diagnoses would be more general. In either case, I would suspect 1 hour of shop time should give a good idea of what is going on.