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98 deville problem

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Multiple Choice

a) Check Engine Light

'B) Overheating

c) AC not cold

d) Leaking coolant

e) Knock

f) can I use regular?

g) Its hard to describe

h) All of the above :blink:

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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my car feels like it's hesitating while in idle, either in reverse or in drive. It will also do this off and on when i'm driving. The rpms also skip while in idle when the car shakes like that....any ideas what it could be...my car has 103k.

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Might be due for plugs and/or wires.

i'd replace the fuel filter as well, just to eliminate the possibility, cheap insurance.....................................red

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it might be the plugs..it feels like it's misfiring. The fuel filter I changed last year along with the fuel pump, so I think it's time for some plugs...with what brand of plugs and wires? And is it easy to do?

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