Shutoff after 30 minutes
Thread Starter
2nd Gear
Joined: Aug 2023
Posts: 2
Likes: 0
Shutoff after 30 minutes
Having a problem with my 94’ C4. It currently runs for about 20-30 minutes before shutoff, currently have replaced:Alternator
Ac compressor
Battery
Belt
Fuel injectors
Fuel pump
Fuel pump relay
Transmission filter + gasket
Starter
Any thoughts or suggestions?
Ac compressor
Battery
Belt
Fuel injectors
Fuel pump
Fuel pump relay
Transmission filter + gasket
Starter
Any thoughts or suggestions?
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
Every thing you mentioned has really nothing to do with shut down, so when it shuts down the question is what's dropping out,
Spark (Coil, Opti) wouldn't surprise me
Fuel or injector problems
That's the information that is needed
Spark (Coil, Opti) wouldn't surprise me
Fuel or injector problems
That's the information that is needed
Thread Starter
2nd Gear
Joined: Aug 2023
Posts: 2
Likes: 0
Thank you for that! Any brand recommendations for an opti + fuel injectors? I went ahead and ordered a new ignition coil, along with a miscellaneous parts, I'll add your recs to the cart as well. (I wanted to also note that the car has 177k miles on dash at the moment).
Safety Car
Joined: Mar 2017
Posts: 4,208
Likes: 1,328
From: LeClaire Iowa
Don't buy any more parts before you find out (as pointed out) what is dropping out. When it won't start put a spare spark plug in any wire and ground it out and have someone crank it and see if you have spark. My money is on ICM or coil. Dan
Melting Slicks
Joined: May 2014
Posts: 2,897
Likes: 592
From: New Port Richey FL
You already replaced injectors you mentioned that at the top, as part of the Diagnostic tools that you need for the injectors is a Noid Light sometimes called an Injector Pulse light. If you you can look into getting a Shop Manual (Hay's/Chilton) don't count for deep in-depth Diagnostic.
There are Electronic or Paper versions of the G.M. Service manual I recommend finding one
There are Electronic or Paper versions of the G.M. Service manual I recommend finding one
