bigomudders

It started yesterday, driving down the road it just quits wont start back until it sits for 15 mins. I have changed the CPS, Distributor, Map sensor. It will Idle and rev up all day long wont quit until your driving.

tnmedic

fuel pump or filter? Check your fuel pressure would be my guess, fuel pump over heating maybe from trash in the tank?

bigomudders

Well I would say I'll try that but I can hold it at 3,000 rpm all day. It only quits while driving

bigomudders

Now it wont start at all

mike albo

have you checked the magnet in the distributor?Mine was falling out,made it run real ****ty,I changed the whole distributor out,it fixed the problem on mine

bigomudders

Already replaced that

mike albo

The only thing left is a fuel issue,sounds like its getting enough,but once it has a load put on it quits

Willys55

Try to isolate the problem. The best way to determine which sensor is killing it out (or if fuel pump) If you have a multi meter you can back probe the wires on the coil. Put the postive on the key on power wire and the ground probe on the other wire and set the multi meter for dc voltage. When the vehicle is running you will see a consistant voltage peak on the meter from battery voltage to 5.5v. When the truck stalls , watch the meter while cranking, if no voltage change then the crank sensor is bad. If the voltage spike is there the the camshaft sensor has failed. Gray wire with white chaser is the ECM supplied ground and the dark green is battery power