20 Most Recent 1997 Pontiac Bonneville - Page 6 Questions & Answers

Hello

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems.

It should located on the passenger side, just a little ahead of the right rear tire, on the inside of the framerail. There is a small pocket between the frame and fuel tank. It will have either a black plastic or silver metal bracket holding it, and has a steel line running into it from the tank.

I would say a zero chance of the fuel pump being the cause.Could be the spark plug, wire or coil - or a vac leak or the fuel injector.

maybe the front dome lights were getting feed from rear

No the stalling is caused by something else like a dirty fuel filter of bad fuel pressure due to a worn fuel pump. With a bad O2 and MAF sensor the ECM will go a on open loop mose for those sensors causing bad performance and gasmileage. Replace the O2 sensor and try cleaning the MAF with MAF cleaner and check the wire harness, look for any damages to the wires and replace if needed. As for the stalling, try replacing the fuel filter first and we can go from there. Keep me posted, be glad to help get your car running 100% and save you some money the same time.

will need to pull a vacuum on system with vacuum pump and then install new freon, will need a vacuum pump and freon gauges

bad connection at battery, bad main fuse under hood,battery dead If you need further help, I’m available over the phone at https://www.6ya.com/expert/mike_9693b5ad75773352

There is not a cooling line that goes to the intake manifold. It's for air only

i think if you unbolt the bottom of the front engine mounts and lift the motor up a little put a block of wood on top of a floor jack under the oil pan

Remove the injector fusesCheck owners manual for fusesYou don't need to disable the fuel pump unless you want to, but you need to stop fuel from entering the cylindersYou don't need to disable the spark, as there won't be any fuel in therewhen your doing the test

I would suggest a Cylinder Leak Down Test, will tell youmoreIt will tell you if you have leaking intake valve,exhaust valve,ring leaking,& maybe cylinder head sealingYou then can follow up with compression ,but whyOn either test your just comparing one cyl to the next, as muchas the actual values reached.There are several electronic test methods used also & requireless time & labor.

check linkage on trans

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dinging as in the motor is knocking?

check coil

The fuse blows to prevent wire melting and eventual fire! If it blows straight away then there will be a short circuit somewhere in the circuit, which means the electricity is going from the battery positive to the fuse then straight back to the battery negative without any resistance. You would have to follow the wiring and test components until the fuse no longer blows. :)

Common problem here - - the air is directed by blend doors behind the dash - either by vac or electric motors.You could have a door sticking or the device that moves it may be faulty.Just about have to take the dash out to get to some of them. If you want to tackle it, I would recommend a shop manual first.Check your library.

White Smoke is CoolantHead Gasket or other issues

You have a miss fire on a cylinder - please check it out soon as you may stuff up your cytillitic converter