Cadillac Seville SLS Questions

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When I'm driving the car idle high then it gets sluggish and take a while to accelerate then it backfires and shut off then it starts back up and continues to do that every day
Car has been over heating...replaced water pump and hoses, also did a flush. Everything was fine for a month or so, then had metal hoses replace...car ran fine again after a long distance trip. Now, car is back to ove...
The needle is not giving an accurate gas amount.What can I do to correct this
4.6 liter northstar engîne
My gas gauge is spinning I cant tell how much gas is in the tank.
I can usually turn them on for about 15 minutes and then they kick off and won't turn on again. And my trac on/off button doesn't do anything to help, or anything at all really.
my remote doesnt have the back to it, so i think thats why it isnt working. I even bought a new battery. and the alarm will go off if I dont unlock the driver side door first with the key. and now sometimes the car wo...
After replacing the radiator i find a coolant on the backside of the motor between transmission and motor unable to find source. are there freeze plugs or a hose in the back side of the motor.oil check fine it only ov...
The car has 133,000 km on it and I checked the codes and there are none. The car idles fine when started but after driving a bit it develops a rough idle at stop signs or in park. After driving on the highway for a wh...
After checking all hoses and checked for possible leaks, then changed out the thermostat and replaced water pump, the temp gauge will still move towards red zone. What or where should I look next?
Very little rust on whole car except where rear subframe mounts attach. Car is in good shape, but don't know if it's worth the fix based on age of the car.
What harm does does it do to not replace a faulty "fuel level sensor" on this car? In my first question I failed to specify which sensor I was referring to. At any rate all else applies insofar as to the approximate 8...
I keep up with when gas is needed by mileage and with the readout in the on board computer that shows "gallons of fuel used". My biggest irritation is the "CHECK GAS CAP" that keeps popping on and the "CHECK ENGINE SO...
Head gasket problem. Leaks from under engine???? Runs well if you keep filling it with water. water leaks out when car sitting still w/o engine running. Large brownish area under where car is parked...slow leak. I...
Cylinder came with 2 keys. These keys turn the ignition. I had a locksmith make me a key with the raise chip and this key will not turn the ignition.
ziptie im in australia u requested post code ? do you mean my residental address code. cadies here are rare , having problem finding mechanic able to scan system thanks for your reply . tony
is this likely to just be in the fuse relay system at the rear or front .
2003 STS with 4.3 Northstar, is this model equipped with a onboard diagnostic link? If so, how do you access onboard diagnostics?
C.D. mag. player is dead, won't play, or eject mag.!!