20 Most Recent 1987 Pontiac Bonneville Questions & Answers

It doesn't seem to me it is a routing problem. I think you have a spark plug wire leak instead.Replace wires.

Check fuel pressure, a quick way to do this is to spray starting fluid into the engine air intake, if the engine starts and dies out you have no fuel pressure. Other no start problems are no spark, and mechanical engine issues like a timing chain failure.

IBUYING PARTS ALWAY CHECK THE MILEAGE,TRY GET THE LOW MILEAGE. B

No timing adjust can be made When you install the crank sensor did you adjust so it won't touch anything. there is a tool to adjust it like hope it helps

most of the time the exhaust crossover pipe has to be removed to gain enough clearance to get to the starter.

in the gas tank.

1987 Pontiac Bonneville 3.8 liter V-6 VIN "3"

Identifying Ignition Types I and II

On Type I coil packs, three twin tower ignition coils are combined into a single coil pack unit.



On Type II coil packs, the coils can be replaced separately and the ignition wires are all on the same side of the coil pack.

With Type I Ignition



With Type II Ignition




Hope this helps.

I am fairly certain that all GMs of that era do have an access portal for the fuel pump, and it is very easy to remove the bottom bench on them to look and see-I had 2 GMs from that era and they had them.

You brake HOSE may have deteriorated, and is not allowing fluidto drain out of the caliper piston. I found out after a piston, caliper, two disks. The wheel would LOCK UP it got so bad.

flip down rear seat

no battery would not do that,sound like a electrical problem,fuel relay or computer

check the crank sensor. this is a very common failure on these vehicles. hope this info helps!

Check the computer error codes. Then check the charging system and battery. It could be a bad alternator and dead battery. If the charging system checks out and you have no spark, it could be a bad distributor cap and rotor, coil or ignition module. If the car was overheating, or had low oil level or low oil pressure and you kept driving it, the engine might be seized.

its not really that hard it like 2 bolts or so and a sensor but i am a mechanic but if u know what ur doing its not that hard

maybe a screw or clip holding lock assembly from the inside. take a look.

Sounds like bad battery contact or ground. Take them off and clean with sand paper.

Hi yotaguy,
You will need to buy a By-Pass pulley, due to the placement of the other pulleys you will not be able to eliminate the ac and still run the correct routing of the belt.
I will research the price of the pulley and post it here.
Please rate this solution, the only compensation I receive for my time is the knowing I have helped and the rating I receive here on Fixya.
Lone99star Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/jason_77a19afa8d604dee