2003 Chevrolet Suburban 1500 "replacing ecm" Questions

1987 Chev Suburban 350 4wd 1/2 ton. Blew head gaskets at about 340,000 miles on the engine. Removed, repaired and reinstalled top end. Fired up on first try. Runs smoother than ever before. Never had ...

ecmb fuse blows as soon as i put in a fuse without keys in the ing. hi, i have seen this problem before, i am a trained ase mechanic who works in a shop weekly. in my case, the suburban was a 91, it ...

r@r engine an harness in vehical no start an p0355 code present no crank signal no rpm on monitor an none on cluster. test signal an has signal to ecm from crank sensor.wondering if maybe terminals ...

ECM you are replacing to compare against the replacement unit. I would be absolutely certain this is what was needed before I changed it: there's no returns/refunds on electrical parts, even used ones

I have a 1990 Chevrolet suburban with a 5.7 liter fuel injected motor. I recently had a transmission installed in it and the day after I got it back I started having problems with it not running ...

crank no start , pass light comes on, had ignition cylinder replaced same problem the ignition cylinder has nothing to do with the no start problem,check the fuel relay(you dont mention what year ...

My 1998 chevy suburban K1500 with 160k miles failed emmissions test because of a P0135 code (O2sensor in bank 1, sensor 1 malfunction) and the MIL on. All emmissions levels were within spec, and only ...

I have a 90 suburban that will only crank over when we pour gas into the throttle body, but it will stay running. We have replaced the fuel pump, the distributor, and the ECM unit. We notice that ...

No power up hills and pinging noises come from TBI little back fire. I have an 89 chevy suburban with 350 TBI, pinging noises come out of the TBI when accelerate with a little back fire. I've replaced

I have a 1990 suburban 5.7 tbi is puring fuel constantly flooding the engine will run but barley I have changed o2 sensor map throttle body borrowed from a good running truck cap rotor temp sensor ...