Before accepting delivery of the PCM, why not try an ignition switch?

 

have ya checked the fuel pump relay? next time it doesnt start tap the relay and see what happens.

 

ok thanks, have used several relays but ill try that and ill order the ignition switch, i seen someone is dead set on thats what takes the fuel pumps out.

 

ok UPDATE!!! the ignition switch fixed alot!, but not 100%, driven 20 miles but i didnt cut it off anywhere, get back home then it wouldnt crank. 5 minutes later cranked right up. has cut off runnin in the yard twice and stumbled one time while driving. So i still dont trust driving it daily! and that Ignition switch is no easy job the first time around, now that i know all the tricks it could probably be done in 30 min to a hour. still have the new ecm comp. on standbuy but im gonna look at the regulator and fuel pressures again,what a lemon for so much to go wrong at one time!!!! thanks for all replys ill try some more remedies.

 

Update!! it ran pretty good for a little over a week, left me stranded again. now back to same problems, cranks on some days doesnt on others ... as soon as i get this lemon runnin im tradin it in.....good luck to everyone else! spent hundreds of dollars and loads of hours, this is my first chevrolet that im highly dissapointed in.

 

Well, I suppose if that is how you want to handle it, I wish you well.

At least you did not say it was your first and last Chevrolet. I mean, any 10 year old used vehicle such as this could have issues. No telling what was done to it in the past.

 

HA nope still chevrolet thru and thru, gonna trade for newer suburban or yukon. still proud owner of 85 chevy suburban, 84 corvette, 86 chevy custom g20van, and my pride and joy 65 chevyII. just cant take the blazer!!

 

Well, I'm glad he's not ditchin the Chevy's. I feel for you, I think you just happen to get a Blazer with a nasty Japanese gremlin inside of it. Good luck on getting another. BTW, make sure you tell the new owner about the Blazer. That way we don't see any double posts.