Okay, will try that and let you know. Question got another issue all of a sudden come out to start up truck and it will crank but will not fire over at all. Now just did all new plugs and wires already checked to see if get fuel to engine from fuel rail pressure valve it is getting fuel none of spark plug wires are arched or exposed after turning it over for few seconds it makes like a backfire noise in the air filter cabin. First time ever did this never had issue with it starting up before had it running for over an hour yesterday and ran perfect no problems never shut off not any noises or smoke at all was running and sounding great and now nothing at all must cranks and cranks. It's like it's not getting spark now to fire it over. Had a similar experience with an 1985 chevy caprice years ago turned out to be the ignition module I believe it was it sat right under distributor cap was white and flat and then it was can remember wat it was called but it was round black hard rubber in middle and a metal square housing around it it also was connected to distributor cap and had wire connection plugs to it. But that was am 1985 Caprice this is 1997 GMC suburban.
Jan 8, 2023 at 8:15 PM