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Cutlass Supreme

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Check engine light, ABS light on
Hello, thanks for writing in. If the check engine light is coming on and going off then usually it is not too serious. Most of the time this is caused by a sensor that is not reading quite right. The...
Ignition problems at the distributor.
Hello, thanks for writing in. I'd be happy to help. This is common as you supply power to the coil once the key is in, which will cause the ground to change. If you are not getting spark then the...
Hard starting and clicking noise
The clicking noise is an indication of either a bad or discharged battery or a bad connection in the starting circuit. There are two circuits in every starting system: the primary circuit that is energized by the key, and the...
Car will start and run fine, then all of a sudden die and not start, or start and die.
If the catalytic converter is not working properly, it will cause the symptons you described, such as very poor fuel mileage, poor performance and a fuel smell as this is the raw fuel coming out of the exhaust. This happens...
Car is leaning on driver side of a 79 oldsmobile is it the shocks
In most cases when the vehicle is leaning to one side it is due to faulty shocks, damaged shock mounts or body mounts. If you're noticing extreme bumping as you're driving down the road, especially on the side that appears...
My high speed on my blower not working new resistor motor is good what could it be the relay
Hi There, The resistor is what controls the speed of the blower motor, not the relay. The blower motor relay supplies power to this motor when you turn the switch to "on" that can sometimes fail. When this happens, you...
93 Oldsmobile Cutlass supreme won't start.
Hi there. Check the camshaft and crankshaft position sensors and make sure that they are plugged in. If the engine is cranking but not starting then the crankshaft position sensor could have failed. Also, check the mass air flow sensor...
Q: My car won't shift into gear
Hello, there is a park shift interlock system on your car that prevents the vehicle from being taken out of park when the ignition circuit is not powered up. I think you have an ignition switch voltage concern. If there...
My four way and left turning signals don't flash
Hello - I suspect there is a bad ground or wiring damage on the left side wiring for the turn signals. The turn signals and emergency warning flashers use the same flasher unit, which explains why the right side turn...
How do i get my car out of the park position?
Hi there: If you're able to turn your ignition key and you can't shift the vehicle from park to gear, it's possible that you have linkage damage to the transmission or some other mechanical problem with the shifter that's prohibiting...
Q: Starter problem
This may be a question of a weak battery or potentially a failing starter relay. If there is a fast ticking sound when turning the key, it is likely that your problem may be a battery that is simply too...
Car oftentimes doesn't start, when it finally starts it doesn't stay running.
Hello there, many common faults will cause your 1989 Oldsmobile Cutlass Supreme to have a hard time starting and die after it starts. You have done great in replacing the crankshaft position sensor, fuel pump, fuel filter, and ignition module...
What would cause my security light to come on in my 1994 Oldsmobile Cutlass
Hello. Most of the time this is caused by a failure in the key sensor located inside of the key lock cylinder. Either the sensor itself fails or the wiring from the sensor located in the steering column fails. Most...
Would you guys put the right shim on my starter for me
Yes, absolutely. To request starter installation and shimming, as required, please use yourMechanic's starter replacement service link. That link will give you an instant, exact quote and allow you to schedule the service right at your location, at your convenience....
Just did a tune up on my 84 olds cutlass supreme. 3.8. Afterward got a static sounds from stereo, then it died on the freeway
When you operated the car right after the tune-up, the coil somehow "found" a good enough path to ground for the ignition to function, but it was probably a high resistance path. That would have increased the load on the...
My ac/heater won’t turn on in my 1987 cutlass it was working yesterday but now nothing
Hi Johnnie. Thanks for contacting us tonight. If your AC/Heater will not turn on (meaning the blower motor), then it's likely that you have a blown fuse or damaged electrical relay that powers the blower motor is likely the cause....
I have a 84 Cutlass supreme with a 305 in it i had some work done to it but when i put the car in reverse its stalling out.
Hi Seantez. Thanks for contacting us tonight. In most cases, when you shift into reverse and the vehicle stalls, it's due to damage within the valve body of the transmission. If your Cutlass Supreme is fuel injected, clogged injectors or...
I drove my car, the car wouldnt turn off, and then when I got it to turn off it won't turn on. The dashboard lights come on but wo
It would most likely be caused by a bad ignition key cylinder or ignition switch. If you could not turn key to off then the lock cylinder may be binding or the ignition switch is bad.
my battery kept draining until i bought a new alternator and battery. i have tightened the belt on the alternator but it still die
Hi there. The best way to diagnose why a battery would constantly drain is to review it's job and how it is recharged. The battery is responsible for powering all electrical systems until the vehicle is started. At this point,...
Poor operation immediately after buying fuel raises the possibility of contaminated gasoline. You might want to check with the gas station and see if they got any complaints as if they did that would be an important clue for you....

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