Thread: 1989 Grand Prix Spark plug change HELP

I have an 1989 Grand Prix 3.1 V6 Non Turbo with 82,XXX. I now have 89XXX and, I'm just getting around to doing the maintenance on it. I did the basic winter weather tune-up stuff and I am to the Plugs and Wires.

My Problem is that I need to get to the back 3 Plugs and can't seem to get there. I tried to take out the alternator but there is a bolt on the underside rear that I can't get to. Is there other way to get the job done? I was talking to my brother who said that some sideways V6 engines in the late 80's to early 90's that have to have the engine taken out to change the plugs.

If anyone could help, I'd be greatly appreciate it.

How would I go about doing that?

Even with taking the dog bones loose it won't rock foward any? I don't know much on these years, that's why I ask. Seen a pic of a 89 engine bay and noticed the DB's.

Idk. I'm not completely sure how to do it. But I have to start soon. I'll have my gf check this to see if anyone has any ideas.

Originally Posted by SyntheticShield

I know on my wifes GA with the 3.1L it didnt rotate forward any and it was something of a chore to get to the ones on the back side of the engine.

How did you end up getting the ones in the back?

do i see 2 different sets of plug wires on this car ? also might wanna look at that belt LOL

Originally Posted by RareGMFan

1. Remove the bolts from the engine side of the "dog bone" engine mounts.
2. Pivot the engine mounts up and out of the way.
3. Pry the motor forward. You can use several methods. GM makes an engine tilting tool if you want to spring for it. I usually use heavy duty ratcheting straps, hooking one end to the bracket behind the motor that holds the MAP sensor, and the other end to a secure spot on the front chassis of the car. Then just ratchet away till you have enough room/clearance to stick your arm comfortably behind the motor. MAKE SURE YOU SECURE THE GAP YOU CREATED BETWEEN THE MOTOR AND FIREWALL WITH SOMETHING SOLID, LIKE A THICK PIECE OF WOOD. Don't want to loose an arm or two back there in the rare event that the straps let go.