Could bad alternator or belt cause rough idle or pinging?

[454muscle]

Re: Could bad alternator or belt cause rough idle or pinging

Autozone should have it, most parts places carry it.

I got mine from Napa here.

You get a can of seafoam
Pour about 1/3 to 1/2 in your full gas tank.
Start the car, with the car running:
The rest goes in any vacuum intake, usually the brake booster hose is unhooked and a funnel is attached to the part that goes to your intake.
Pour 1/4 of the seafoam VERY SLOWLY (in a trickle) into the funnel, being careful not to choke out the engine
When you have about 1/4 can left, start pouring quicker and then dump in the remaining liquid until the engine chokes out and stalls/turns off.
Wait about 15 - 20 minutes.
Start the car.
Within about 5 minutes you should see heavy white smoke coming out of your exhaust. This is normal. It's the carbon deposits burning off!
Drive the car, and while it's smoking, be sure to give it full throttle a few times.
When the white smoke is clear, usually 20 - 30 minutes or so, you're done.

There's Youtube videos, I suggest you search and watch 1 or 2 of them to get the idea, but it's basically the same.

Hope that gets your car running smoother!!!!

 

[DoubleV]

Re: Could bad alternator or belt cause rough idle or pinging

Do I have to remove the carb? Can't I just remove the valve and access the egr passages from there? Could it be the egr siloniod?454muscle, where can I purchase the seafoam? Thank you! Following your advice doublev.

Yes you need to remove your carb. Taking off a carb is a simple 10 minute job. When it's off look into the intake manifold and you'll see 2 big tubes sticking up from the intake floor. Just remove them with a deepwell socket. They're probably clogged with carbon deposits. When they're removed you'll see the 2 holes in the intake the tubes were screwed into. Clean those holes/passages as best you can. You really gotta work to get some of that sh*t out of there. Then you can remove the EGR valve and clean as much carbon deposits from that end too. Reach into the passage as far as you can to clean as much out as you can then vacuum out all the loose crap. Reinstall carb and EGR and everything should be fine.

This is a common problem on high milage 307's.

If it's your EGR solenoid, I think it wold throw a code at you ( 53 I THINK ).