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1991

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Question
What would cause my car to sputter and have a rough idle to the point of stalling, and making my car smell like gasoline?
It sounds like you may have a leaking fuel injector(s) or potentially a bad fuel pressure regulator. You may want to check to be sure the fuel pressure regulator is working properly. The fuel pressure regulator is a device which...
Question
Our 1991 Nissan Maxima shakes violently when first starting, moving slowly, or stopped, it accellerates slowly now as well.
Hi there. It's quite common for shaking to occur after completing multiple fuel system component replacements, typically due to a vacuum line being disconnected accidentally or being loose. In most cases, the symptoms you are describing are due to a...
Question
can I pull the fuse for the tank fuel pump and use an external pump, will it pull past the valves in the tank pump.
Hi there. We try to stick to OEM service, maintenance and repair tips, so unfortunately, we're not able to help you with this engine upgrade. It would be better for you to contact a performance shop or search online for...
Question
Bad fuel pump
It sounds like you may have a damaged AC compressor or compressor clutch. As you may know the AC Clutch is the pulley that spins with the Belt. There are two ports on the rear of the Compressor. One is...
Question
Wondering if I ordered the wrong waterpump
Hi there. Typically, ordering a replacement component by VIN # is the best way to ensure you have the right replacement parts. It is possible that the water pump currently on the vehicle is an aftermarket component that has been...
Question
I have a 91 Buick Skylark. Iron duke, 4 cylinder 2.3 L I just want to know can this car be turned into a performance car?
Hi There, Unfortunately, due to the age of the vehicle you may have a tough time finding any performance parts for this vehicle. Additionally, due to the weight of this vehicle relative to the 4 cylinder motor, this would not...
Question
Car is not hitting on all 4 cylinders with new spark plugs, wires, distributor cap and rotater
It sounds like you may have a problem with one or more cylinders misfiring. Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination...
Question
Rear anti lock
An inspection could determine if the the anti-lock warning light and the grinding noise stem from the same cause(s). The grinding noise is likely to due to a brake pad/rotor/caliper issue but if there is debris in or around the...
Question
1991 s10 cranks but no start
Hello, thank you for writing in. You may want to start by making sure your air intake and throttle body are all clean and working well. Then, perform a compression test to make sure the engine itself is not your...
Question
I have a good build and new light socket on driver side but I have now low beam I tracked it back all the way to the fender the wi
Check the circuit ground. If you are finding power to the fender area termination, then there is a fault between that point and the bulb socket. Of course, if there is no power to the fender area, then the fault...
Question
Hi Joshua i have a question im thinking about getting my Bmw 525i serviced over at my local bmw dealership how much are we looking
YourMechanic offers a complete slate of maintenance and repair services. All of these offerings are listed on YourMechanic's services page. The cost to service your car will depend on exactly which service you desire but in all events you will...
Question
there is a loud rattling noise that sounds like its coming from transmission and only does it during acceleration and higher RPMs
It's possible the code(s) stored when the check engine light came on might provide some clues although your onboard diagnostics system is an early version (OBD-I) and so the data reported is not very detailed. Nevertheless, a first thing to...
Question
Clattering noise when I start car and begin driving.
Hi John. Thanks for sending in your question and attaching the video. At first glance, that pretty aggressive rattle upon initial acceleration is most likely a transmission component (like an input shaft), CV joint or really bad wheel bearing that...
Question
How do i tell the diffrence between bad head or bad head gaskets in my 1991 ford explorer 4.0 4x4
If your engine overheats and head starts leaking coolant it is most likely from the head warped and fluid leaks past the cylinder head gasket. You would need to remove the heads to have a machine shop check for cracks...
Question
While I was driving I all of a sudden couldn't accelerate no more and my brakes locked up. 1991 Nissan Pathfinder
Hello Typically when this occurs it is due to the brake fluid being contaminated or from a failure in the brake master cylinder. Most of the time when something other than brake fluid is put in the system the seals...
Question
How bad is it to mix 1/4gal. Green coolant with two gallons of red
There isn't much difference in the coolant except for the dyes that they put in. There are a few subtle differences that are more important to the later cars than they are to a '91. I wouldn't lose any sleep...
Question
Have a 91 Lincoln town car and it stalls when I put in park and while driving.
This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, making turns (which makes use of the power steering pressure switch) turning on...
Question
i have a 1991 chevy cavalier and i have a hose at the back right side of my engine that is not connected on one side. what is it
The hood should have a vacuum diagram for the engine and may identify the where the hose goes. If you check the MAP sensor on the back of engine to see if hose goes to it. If not then check...
Question
1991 Ford F-250 needs ignition switch reinstalled
Sounds like someone bypassed the factory ignition switch circuit. This indicates there was a problem with the circuit to begin with. The lock cylinder would need to be physically relocated to the steering column. Then, the ignition switch circuit would...

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