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1997 GMC Sonoma

Tiny
TSMITH0602
  • MEMBER
  • 1997 GMC SONOMA
Electrical problem
1997 GMC Sonoma 6 cyl Two Wheel Drive Automatic

my truck started missing out getting radom misfires so I tuned it up the next day it started doing it again then the abs light came on and the speedo dropped and the transmission kept losing power and now it wont start. Could it be the computer
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Thursday, February 12th, 2009 AT 10:40 AM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hello, if it cranks good but won't start, have a helper crank it, while you check for spark at the plugs. If you have good spark everywhere, check fuel pressure. Start with the basics. If you do a lot of testing with the vehicle cranking, you may need to disable the fuel system.
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Thursday, February 12th, 2009 AT 11:44 AM
Tiny
TSMITH0602
  • MEMBER
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[quote="tsmith0602"]Electrical problem
1997 GMC Sonoma 6 cyl Two Wheel Drive Automatic

my truck started missing out getting radom misfires so I tuned it up the next day it started doing it again then the abs light came on and the speedo dropped and the transmission kept losing power and now it wont start. Could it be the computer now I cant even read the codes and he ses light keeps flahing
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Saturday, February 14th, 2009 AT 6:54 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
I'd do some basic tests and see what it shows? No spark, no fuel, what?
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Sunday, February 15th, 2009 AT 10:53 AM

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