1999 Chevy Truck engine doesn't start

Tiny
DMS1TON
  • MEMBER
  • 1999 CHEVROLET TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
I have a 1999 4-door Chevy 1 ton truck, with a 7.4. I started the engine, let run for about 1 minute and when I put the truck in gear the engine started running rough. I put the trans in neutral, to try and clean the rough idle out, and the truck would not take any fuel and quit.
I checked fuel pressure and have 50 lbs during cranking. I replaced the coil, because I thought the spark looked a little weak. Still didn't fire. I replaced the dist cap and rotor. Still will not fire. I can spray carb cleaner into the intake, and the engine will fire a few cylinders and seem to want to start. But doesnt seem to have any fuel. The plugs are about 4 months old, appear a little wet and sooty. Has about 1/2 tank of gas, and fuel pump is about 4 months old as well (Autozone).
What should I try next?
Do you
have the same problem?
Yes
No
Wednesday, March 24th, 2010 AT 7:50 PM

1 Reply

Tiny
DMS1TON
  • MEMBER
Found the problem. Water in the fuel. I hooked a clear line up to the intake fuel pressure port, draining into a container. Cycled the ign switch to run the pump and got about a gallon of water. Drained the tank, put in a fresh 5 gallons, and flushed the line again. Fired right up. No idea how that much water got in the fuel, but that was the problem.
Was this
answer
helpful?
Yes
No
Saturday, March 27th, 2010 AT 4:59 PM

Please login or register to post a reply.

Recommended Guides