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Asked by Lateyear May 10, 2019 at 04:42 AM about the 2004 Chevrolet Trailblazer LS RWD

Question type: General

Let me try to explain this...after changing motors the car was drivin for approx
5 miles and being turned off it would not start again. After replacing fuel pump
we were still getting pump to turn on we thought maybe a ground.  We
exalted that possibility and thought Pam, so we pulled the pcm and ecm from
my parts car and it still don't start. Along the way the camshaft positioning
censor and crankshaft positioning sensor have been replaced. I also have
another pcm and bcm and still did stArt. I need some help

1 Answer
40,075

beatupchevy answered 5 years ago

the computer the engine came with should be used , things need to be tested not replaced , you have to trouble shoot the no start problem when it occurs . This is why I discourage any motor swaps or cobb jobs . It ain't like the old days .

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