Re: help with chevy truck
 

When I worked in parts at Huber Chevrolet, we used to sell a lot of distributor shafts for those and the gasket under the throttle body. Not very many injectors.
Fuel pumps are extremely common, too. Sorry if I missed anything.


Clark

Re: help with chevy truck
 

Can you feel any air coming out the tail pipe when it's running?

Re: help with chevy truck
 

did not try checking for air at tailpipe. Ed I was thinking of changing it to carb and hei, Dont know if thats a possibility or not.

Re: help with chevy truck
 

Jim ,I got a spare 283 you can put in it......

Re: help with chevy truck
 

Jim: If all else fails with the distributor, MSD offers a replacement unit for '87-95 Chevy trucks, pt. no. 8366. Hope to see you soon, Jim

Re: help with chevy truck
 

don't forget to get a new pickup coil when you pick up your distributor shaft. they tend to be brittle and coroded also. replace these 2 parts and you will be good to go.

Re: help with chevy truck
 

I too hyave a 95 Chevy truck with about 200,000 miles on it. Would this dist shaft problem cause low HP/Sluggish performance and lowered fuel mileage?

No missfire I can hear, you do have to pump it a couple times to start it.

Recent plugs wires and cap, maybe 15,000 miles

The truck burns no oil, compression is good in all eight Cyls. It almost feels like the Cat Con is plugged.

Re: help with chevy truck
 

Tod-Have you checked the timing per the advice on this thread? Be certain that you're getting your full ignition advance-we all know how doggy that can feel-if you have never replaced the shaft in the dist. I would just in the interest of good maintenance.The timing tag under the hood will give advice on checking timing also so you should have lotsa help there-good luck. Doug Schriener

Re: help with chevy truck
 

Sound like Tod Lane hit it, I'd look at The Catalytic convertor. Still sounds as if you have a base timing issue after that is resolved if it still has no power remove the frt, o2 sensor and adapt a pressur gage to the hole start engine should not see more than 1-3 psi at 1500 RPM

Re: help with chevy truck
 

The engine still should run with the brown wire disconnected. The initial timing should be enough to at least let the motor idle. Whatever the label says to set the timing, say 4-degrees before TDC, with the brown wire disconnected, should set the MIL light and a code in the ECM, so you'll have to clear both after you're done with the timing.

Did you have any codes stored in the ECM after the motor started to exhibit the stumble? OBD ll vehicles are usually (but not always) easier to diagnose because of the codes they throw. It might pay to have someone hook a scanner to it, if you haven't done so already. I had a neighbor who's Firebird had a terrible stumble off idle, hooked the scanner up and found the ignition system wasn't advancing the timing at all! No hair pulling necessary! :o

Just a few ideas...............

Lew