It turns over but won't start. Last week it started in my driveway then stalled. Now it only cranks.

It has been running great.

!994 Silverado 350 205,000 miles

What I have noticed and checked/replaced, so far.

The fuel pump runs when I turn on the ignition. I can smell fuel when I crank it.

Replaced the fuel pump on 158,500 on 2/2012. New fuel filter last week.

New Distributor 6/2020 =186,410

Replaced ignition module and spark plugs last week. Distributor cap and rotor look good.

Any ideas on what I should check?

Thanks

 

The fuel pump may be running but is it delivering the correct fuel pressure? Do a fuel pressure check. I have replaced distributor cap and pickup with off brand parts and very shortly they quit working, so these are 2 things you can check.

 

I don't have a fuel pump tester. I wanted to buy one the 1st time my fuel pump went bad. I could never figure out how to connect them to my fuel line. I still would like to get one. Can 1 person crank the truck and take the reading?
Someone told me Harbor Freight has one ?

The first time I just pour some gas down the throttle body and the truck fired right up. So, I knew it was the pump.

This time I can smell gas in the throttle body, but it doesn't start. I did replace the fuel filter. It was time.

I am not getting a spark. So, I replaced the ignition module. (Auto Zone) Best one they had?? Still no spark. The cap & rotor (MSD) look really good, so I didn't replace them.

I put in a new distributor about 15,000 miles ago. The truck has been running great ever since then. Last week it started right up but stalled after a few minutes.

I haven't been able to get it running since.

I do have compression and the rotor moves when I turn the key.

Thanks for the suggestion.

 

Check your wiring harness going to the ICM. I have replaced three ICM's in my '93 Sub, every time I could get it to fire pouring fule in the throttle body - pump would prime but injectors were not firing.

 

I will check the ICM wiring harness carefully this time. I need to also check the wirings going to the injectors. They were damaged about 15 years ago and I used some liquid tape to cover the bare wiring.

Thanks