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hard start runs rough


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Old 09-08-2009, 05:22 PM   #1
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hard start runs rough

i have a 99 blazer that has had the motor replaced i has a hard time starting but when u let it crank for a few seconds it finally cranks up then it starts to run rough but when u rev it up it clears out it has new ever thing so i heard it could be the spider injection causing the problems any body have similar problems please let me know.
Old 10-08-2009, 01:05 AM   #2
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Re: hard start runs rough

i do. and after replacing the injectors it really helps, but I've heard these types of injectors are prone to clogging or going bad easily(my new ones are starting to do it again). There is a new type of injector you can get that's different and supposed to pretty much fix all those problems.
Old 10-09-2009, 09:55 PM   #3
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Re: hard start runs rough

i have a silimar problem with mine the mechanic shop said my fuel pump wasn pumpn enough fuel pressure was why if it set for alittle why is was hard to crank and thats why when u get down on it it wouldn go nowhere



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