Brought this car new in 1982, have had a vibration problem from day one, from 55 to 70 mph, I changed the drive train in 1996 to 1995 LT1 350 from a police interceptor, now the virbation moved up to 65 and up any help would be greatly appreciated email address [email protected]
Could be in tires and you may want to have frontend checked out ,have tie rods ,,,,ball joints and all bushings checked. This would be my suggestion and good luck and feel free to contact me if more help is needed.....good luck
SOURCE: my cadillac dts has bad vibrations over 50 mph ,
very well could just be a bad tire. I have replaced brand new tires straight from manufacturer you should check for a bad wheel or balance of tire and perferabley somewhere where they do a phase match balance.
SOURCE: 2000 Cadillac Deville stalling when waiting at red lights
I would have a pressure test done on the fuel system. the fuel pump could be going out. also does the check engine light come on, if so can you get the codes checked?
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SOURCE: find 2002 cadillac deville Paint Code
It will be under the spare tire cover.This looks like the size of a credit card and has a lot of numbers and letters.It is called the RPO label.The paint code is on the very bottom of the label and will usually have a u or an l.This stands for upper and lower if the car is a two tone.Hope this helps.Good luck.
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SOURCE: We have a 1992 Cadillac DeVille - the motor has
check fan fuses and relays. is the idiot light coming on . stop engin temp. if its coming on unplug it . its located behind the rear valve cover in the middle. if that isnt it replace temp sensor. located below the air breather.
SOURCE: car accelerates to about 35 mph and doesnt go any faster
mine does the same thing. im thinking O2 sensor, or something in the fuel line like the ful filter or sumthin. i dont know much about cars, but this is what ive been told. try some octane booster for a temporary fix, they have some NOS brand octane booster at O' reilleys that boost the octane 60 points, its not street leagal, but whos gonna know? lol
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