97 Blazer wont start
#1
97 Blazer wont start
I went to run an errand today and it wouldnt start. It cranks over and over but just wont start. I've checked the gas pressure and spark. Fuel pump also works. Ive held the pedal to the floor and tried starting it that way. I just did a full tune up on it a couple months ago. However, I did have this problem once before as well which was fixed by holding the pedal to the floor and releasing when starting it. The last occurrence was probably sometime in early March. Can anyone think of something else that Id be able to check on it or do you know what else may be wrong? All help is appreciated. Thank you!
EDIT: By tune up in reference to what the problem could be, I mean I replaced spark plugs, wires, distributor cap, etc.
EDIT: By tune up in reference to what the problem could be, I mean I replaced spark plugs, wires, distributor cap, etc.
Last edited by Jiftim; 06-02-2010 at 07:42 AM. Reason: Further Clarification
#3
I'm not sure how to get an actual number for the pressure but I pressed in the schrader valve behind the throttle body and was getting gas with a small bit of pressure behind it. Im not exactly sure where the MAF, EGR, or IAC valves are to even attempt cleaning them.
Last edited by Jiftim; 06-02-2010 at 05:58 PM.
#4
Iv been having the exact same issue. I had a fuel pump under warranty so I changed that. Still no start...nice spark..55 psi fuel pressure...soo i checked out my mass air flow sensor (MAF) For some reason it had oil on the air flow prongs...so it was sensing that no air was passing through...leading to no start. I just cleaned it off with carb cleaner...started right up. Has been perfect ever since. You might have a completely different issue but 5$ carb cleaner and loosen a couple screws and you might be in like flinn. Worth a shot bro.
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