2003 Chevy Suburban diaignostic connectos dead

Tiny
JTB5959
  • MEMBER
  • 2003 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
This problem comes with cold weather, it starts fine then after apx. 30 to 45 seconds, starts chuging like its loading up, if you go into drive, its very bad, I took to 2 different places and they hooked scan tool up, and both said the tool would not read connector, I replaced the m.A.P. And mas air flow with no change, can tyou advise, I have checked all fuses, Thanks
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Thursday, December 10th, 2009 AT 11:48 AM

1 Reply

Tiny
HMAC300
  • CERTIFIED MECHANIC
Two things, first change the fuel filter especially if you have never changed it. Then remove the air duct near the throttle body and spray choke cleaner to clean the oil deposits off the plate and open it up and clean the hole where the idle air control valve is, that may be all of your problem.
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Friday, December 11th, 2009 AT 8:39 PM

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