Starts fine cold,warm up or drive to op.temp turn off wait@10 min.most of the time won't restart .no spark 62 psi .fuel pressure.had ICM tested,replaced coil,checked cap&rotor noplay in dist.shaftwiggled connectors while being cranked no start.Let motor cool for half hour or longer ,it will fire right up.what is next step?????
Have you changed the spark plugs for new ones?
SOURCE: 96 GMC pickup w 350 engine, starts hard after like 8 hours.
could be your fuel pump relay you should check to see if the pump runes for about 3 sec. when you turn the key to the on position. It should if not the oil switch is turning on the pump after you achieve pressure.
if not check the relay. also with the pressure gauge hooked up check if your pressure drops off fast after you turn off the car. if so you need ether a pressure reg or a fuel pump.
hope this helps
SOURCE: GMC JIMMY NO START BUT GOT SPARK AND FUEL
try the oil pressure switch, that was a common problem on Gm trucks when I used to work on them, the oils switch was bad and woulden't allow it to start and the ones I worked on were on the back of the distributor.
SOURCE: 96 gmc sierra hard to crank after 12-14 hours
that has a votec engine in it the fuel pressure is droping at knight and it takes 60 psi before the injectors will fire most likely cause fuel pump ,leaking injector ,or a feul pressure regulator
SOURCE: 1996 gmc jimmy wont start seems like advanced
You said the problem happened right after the engine was replaced correct? If so bring number cylinder to top dead center on the compression stroke. Remove the distributor cap and see if the rotor is lined up with the number one spark plug wire. It's possible the distributor was installed 180 degrees out.
245 views
Usually answered in minutes!
×