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Bonneville Stalls Intermittently while idling and while on freeway
Without visually inspecting the problem, it would be hard to see why the stall happens. These vehicles have many possible problems and you replaced most of them. This is not to say that is it is impossible for one of...
So I put in aftermarket radio into my 02 Bonneville last Saturday and got it all wired up correctly. Later during the day it stopped working.
Hi there, well lucky for you I have a lot of experience with aftermarket radios. It sounds like you have whats called a remote wire that is supposed to be connected to the ignition so when you turn the key...
I found a old fuel pump relay. Do I need to check that first before I get a fuel pump. I had the car for 6 years and I found one i
You can try it but a new relay is pretty cheap and you'll spare yourself the question of whether it is good or not. If the fuel pump turns out to be bad, then I would put a new pump...
My car want start and when it do it shut down and want start until 30 minute or so. Now it want do nothing
When a car turns and won't start, it is called a "crank no start". When this occurs, the first thing you need to do is see what is missing. All internal combustion motors need spark, fuel, injector pulse and camshaft...
Engine makes weird noise
The knocking noise and the dying are most likely two different problems. Diagnosing sounds is inherently not possible without being present. Even with a video. There are some very specific noises a car can make that with experience a technician...
I want to know what engines would fit my motor mounts properly
Hello. The biggest engine that this vehicle originally came equipped with was the 5.7L V-8. This is the 350 cubic inch version. I am not sure what modifications to your vehicle that would need to be done to make this...
My 2003 Pontiac Bonneville will run well for a short time then it will bog down chug and die.
Hey there, thanks for writing in about your 2003 Pontiac Bonneville. You'll need to have the fuel pressure checked when it dies to see if the fuel pressure is too low causing the loss of power. You should also have...
Idles up, burns 1 quart oil every 20sec with no oil leak.
You might not have burned that much oil in 30 seconds of running the motor but the oil is not draining back from the upper parts of the motor. The sludge that has built up in the motor has clogged...
My car cranks but doesn't start, the gas is not coming out by the fuel filter, and the lights are not coming on by the dashboard
With little information available, it is difficult to definitively say what the problem is. If the starter is working, and cranking over the engine, then the battery and the starter can be considered okay for the moment. If you are...
Charcoal can gas leak
All modern cars are equipped with an Evaporative Emission Control (EVAP) system. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the charcoal...
Will 01 grand am wheels n tires 205/55r16 fit my 91 Bonneville?
I am pretty sure GM did not change the bolt pattern between these two year of vehicles. As a precaution, count the number of lugs and measure the length between the lug studs and compare it on both wheels. Make...
Won't start - 2000 Pontiac Bonneville
Not likely. If the supercharger is not spinning, your motor will be greatly starved for air. The supercharger is a set of very large surface area gears that push more air into the motor at a rate higher than it...
Car won't start - 1998 Pontiac Bonneville
Hi there. Disconnecting and re-connecting the battery, although the right thing to do while working on the fuel system, has tripped the security system and is not allowing a "start" sequence. (You don't mention it, but the security light in...
Car starts but runs uneven, ignition module and coils replaced, battery fairly new
Hello, thanks for writing in about your 2003 Pontiac Bonneville. Make sure all of the connections the the ignition module are tight. If one of the wires are loose you will have a rough running engine. I'm sure its something...
Headlights won't go off.
It sounds like you have a short in the wiring harness that goes to the headlight switch that is allowing the electricity to bypass the switch. I would recommend enlisting the assistance of a qualified technician who is experienced in...
Car runs with the mass airflow sensor unplugged. If you plug it in it will die if the car is running.
This is a sure sign of a shorted mass airflow sensor. The reason it starts with it off is the computer sees no mass air signal and replaces it with an internal memory fake signal to use. This will let...
What part do I need to replace to fix a bad idle and not starting issue?
Hi, thanks for writing in. There are several issues that could be causing your symptoms. You may have an issue with your fuel delivery system. Your fuel pump may be weak, or attempting to push fuel through a clogged fuel...
Mass airflow sensor issue
This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...
Fuel pump question on a 1993 Pontiac Bonnevile
Hi there. Most of the time from the factory the fuel pump on this car will not have white wires. If this is an aftermarket pump, then it may have different color wires. If moving the wires allows the pump...
My car makes a groaning sound whenever I turn left. What could be the cause?
Go through the following steps to find the cause of the issue with your car: Groaning sounds in your car can indicate that the power steering pump is failing. Check the power steering fluid and see if it smells...

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