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2000 Blazer that stumbles
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Jckson300
New User
Jun 21, 2007, 2:33 PM
Post #1 of 1
(1678 views)
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2000 Blazer that stumbles
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I am working on a 2000 blazer 4.3 Vortec, auto, 4 wd
The car starts and idles just fine. If you slowly accelerate it it runs fine. But, if you throttle up like you would normally the car stummbles and starts back firing through the intake. If you hold it around 2000 rpm it slowly catches and runs normal. If you floor it it quickly dies.
Fuel pressure is between 57 and 58 psi and holds.
injectors test equally
no burns in the dist. cap or rotor
all components test good. Ie TPS,MAF,IAC.....
No codes
No smoke
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