Help!!! Shutting off issue

[Matt Conner]

I’m stumped. The issue was resolved for awhile after I changed the distributor. I’m wondering what caused the new distributor to go bad again

 

[McBroom]

I’m stumped. The issue was resolved for awhile after I changed the distributor. I’m wondering what caused the new distributor to go bad again

Its probably the module in the distributor. They can intermittently go out.
I remember daddy had a 80 chevy 1/2 ton, we were on a trip to northern California when the fuel pump started going out on it. After 1200 miles it finally stopped working. $20 fuel pump and on the road again for the other 600 miles. We like to have never figured out it was the fuel pump.
Moral of the story is in my 1st paragraph. Intermittent problems are hard to chase down. I had a blue oval truck and the distributor was going bad. We chased every wire under the hood for 2 weeks before I just decided to start throwing parts at it. Msd distributor and problem solved.

The Blue Mule

 

[Schurkey]

If it’s cutting fuel flow could be a bad fuel pump relay, loose wire or short somewhere along the fuel pump power wires, or oil pressure sending unit is bad making ECM think it has no oil and shutting down the fuel.

The ECM does not shut off fuel due to low oil pressure. In fact, there's no input to the ECM for oil pressure at all.

when it shuts off, file stops spraying Untill the engine shuts completely off then it sprays a small amount of fuel after it’s shut off.

I read--probably on this forum--about a vehicle that sprayed fuel after the ignition was turned off, and it was fixed with a replacement ignition module. Lord knows, Chinese distributors can have the crappiest modules on Earth.

The truck doesn’t have any o2 sensors on it. It only had one on it and when I had the exhaust put on they took the one out.

I can't imagine. Clearly, someone needs to straighten-out numerous problems with this vehicle.

 

[Donald Mitchell]

Sounds like you've been changing a lot of things. You changed the distributor and it worked a few days. You may have moved something else while you were back there and made a connection. Does this one have the two oil senders and one of them that kills the motor? MAF?

 

[Matt Conner]

Sounds like you've been changing a lot of things. You changed the distributor and it worked a few days. You may have moved something else while you were back there and made a connection. Does this one have the two oil senders and one of them that kills the motor? MAF?

I haven’t changed the MAF sensor yet, but like I said, I changed the distributor and it was fine then started doing it again. I put a new ICM In the distributor and that didn’t help it this time.

 

[Matt Conner]

The ECM does not shut off fuel due to low oil pressure. In fact, there's no input to the ECM for oil pressure at all.


I read--probably on this forum--about a vehicle that sprayed fuel after the ignition was turned off, and it was fixed with a replacement ignition module. Lord knows, Chinese distributors can have the crappiest modules on Earth.


I can't imagine. Clearly, someone needs to straighten-out numerous problems with this vehicle.

I just had an exhaust put in the truck and they didn’t reinstall the o2 sensor. The headers I have on the truck have a bung for an o2 sensor and I plan to install it. But the truck has no cats on it.

 

[Erik the Awful]

Did you put any thermal paste under the ignition module? Without a way to dissipate heat it'll work fine for a few minutes, but once it heats up it'll conk out.

 

[Matt Conner]

Did you put any thermal paste under the ignition module? Without a way to dissipate heat it'll work fine for a few minutes, but once it heats up it'll conk out.

I did, the module that came with the distributor had old dried up heat sink on it so I changed the ICM and put fresh paste on it before I reinstalled it and it kept doing the same thing.

 

[texas tough]

where did u buy the distributor, and how much was it.
you said u changed the ICM, WHAT PART DID U CHANGE IT WITH?
Why did you change it, and surely u didnt put the old one back on?

 

[Matt Conner]

where did u buy the distributor, and how much was it.

I get most of my parts from Federated Auto. I believe it cost me around 180 for the distributor. I removed the ICM that was in it and put a Standard ICM in it