Truck stalling

[OBSMando]

Been having a stalling issue with my 95 obs . Truck turns on fine but after a good while of driving the truck stalls and won’t turn back on I have to wait until the truck cools down for it to work again . Also noticed that when I was hauling some wheels the truck didn’t even last 5 mins and it kept stalling constantly. If anyone has had this issue please help me

 

[Donald Mitchell]

Sounds like a fuel delivery problem.

 

[stutaeng]

You are either losing spark or fuel. Need a spark tester and fuel pressure gauge at the minimum to see which one is falling off.

Doesn't the ICM sometimes die if it overheats? @PlayingWithTBI is one of our TBI experts. Hopefully he can chime in.

 

[PlayingWithTBI]

Doesn't the ICM sometimes die if it overheats?

Yep, it can, especially when heat related as described. OP, how old and what brand ICM do you have? The ignition coil can/will take out the ICM too. Is the Pickup Coil inside the distributor in good condition without any cracks?

Sounds like a fuel delivery problem.

It's always a good idea to check fuel pressure too.

Then you can put a scanner on it and see what's going on. The scanner can't tell you if you have low fuel pressure, except for maybe the O2 feedback being low. It can't tell you if your ICM or Coil is bad either, or if any other wiring/equipment are bad but, it may give you an idea where to look if there isn't anything obvious in the data stream.

 

[OBSMando]

Yep, it can, especially when heat related as described. OP, how old and what brand ICM do you have? The ignition coil can/will take out the ICM too. Is the Pickup Coil inside the distributor in good condition without any cracks?


It's always a good idea to check fuel pressure too.

Then you can put a scanner on it and see what's going on. The scanner can't tell you if you have low fuel pressure, except for maybe the O2 feedback being low. It can't tell you if your ICM or Coil is bad either, or if any other wiring/equipment are bad but, it may give you an idea where to look if there isn't anything obvious in the data streamDoesn't the ICM sometimes die if it overheats? @PlayingWithTBI is one of our TBI experts. Hopefully he can chime in. also notice that my fuel pump does whine when ever It stalls out when I go to start it

Yep, it can, especially when heat related as described. OP, how old and what brand ICM do you have? The ignition coil can/will take out the ICM too. Is the Pickup Coil inside the distributor in good condition without any cracks?


It's always a good idea to check fuel pressure too.

Then you can put a scanner on it and see what's going on. The scanner can't tell you if you have low fuel pressure, except for maybe the O2 feedback being low. It can't tell you if your ICM or Coil is bad either, or if any other wiring/equipment are bad but, it may give you an idea where to look if there isn't anything obvious in the data stream.

There not even a year old they are the del

Yep, it can, especially when heat related as described. OP, how old and what brand ICM do you have? The ignition coil can/will take out the ICM too. Is the Pickup Coil inside the distributor in good condition without any cracks?


It's always a good idea to check fuel pressure too.

Then you can put a scanner on it and see what's going on. The scanner can't tell you if you have low fuel pressure, except for maybe the O2 feedback being low. It can't tell you if your ICM or Coil is bad either, or if any other wiring/equipment are bad but, it may give you an idea where to look if there isn't anything obvious in the data stream.

There the ac delcao and there not even a year old i swapped it out like a couple months back .

 

[PlayingWithTBI]

I see you have already started a thread about your issue.

Truck stalls after driving for 15 min

a year ago a brought a 1995 Chevy from Mexico to Orlando after it came from Orlando the truck started having problems where the truck would run for a good 15 mins then stall and won’t turn back on until the truck cools off. I’ve changed fuel pumps fuel filters changed fuel fuses aswell still...

www.gmt400.com

There are other suggestions like, fuel pressure, scanner, wiring/connectors, etc. Just because they're ACDELCO doesn't mean you don't have a bad one.

 

[OBSMando]

I see you have already started a thread about your issue.

Truck stalls after driving for 15 min

a year ago a brought a 1995 Chevy from Mexico to Orlando after it came from Orlando the truck started having problems where the truck would run for a good 15 mins then stall and won’t turn back on until the truck cools off. I’ve changed fuel pumps fuel filters changed fuel fuses aswell still...

www.gmt400.com

There are other suggestions like, fuel pressure, scanner, wiring/connectors, etc. Just because they're ACDELCO doesn't mean you don't have a bad one.

Yea possibly would of got a lemon I will keep on trying to see what’s the issue I tried fuel pump aswell not sure if it was properly installed