2001 Chevrolet Express Computer not talkin

2001 CHEVROLET EXPRESS

5.7L • V8 • 2WD • AUTOMATIC

RANDYPOWELL

MEMBER
2 POSTS

I have a 2001 Chevy express van The motor was bad when I bought it I put a good 5.7 350 in it out of a 1997 z 71 when I got it in and ready to start . There isn't any spark. The fuel pump doesn't work and all the guarded are acting funny. We code tested the computer and it's not talking to tell the motor what to do. The fuse box has power and the relays. I have no spark, no fuel pump, and my gauges are acting weird. The van has a security system or anti theatf thing on it . The computer is not communicating anything what is going on???

Sep 30, 2015 at 2:09 PM

HMAC300

✓ASE Certified Mechanic
48,601 POSTS

try resetting anti theft.

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Oct 1, 2015 at 7:15 AM

RANDYPOWELL

MEMBER
2 POSTS

Thanks Jerry for your time. I have already tried that and the computer still will not talk

Oct 1, 2015 at 1:23 PM

HMAC300

✓ASE Certified Mechanic
48,601 POSTS

check the two fuses in ic underhood then have a local pro scan for codes. make sure ground wires are connected on engine normally at front and rear of heads as the pcm grounds there.

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Oct 1, 2015 at 2:33 PM

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