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1995 blazer won't start without a shot of fuel

Sent to Car Experts September 13 11:46 AM

1995 BlaZER 4.3 WON'T START. Will only start when I put fuel in the trottle. When I turn key on Fuel pressure goes to about 60 lbs but bleeds off quickly. Replaced fuel pump, and filters. Starts and runs ok when primed but after I turn off it will not restart.

Customer (name blocked for privacy)
Status:  Closed   Value: $5
Answer
September 13 11:55 AM (9 minutes and 13 seconds later)
         
ACCEPTEDCheck Mark

This could be caused by a vacum leak causing the mixture to be too lean to start. I would check all vacum lines and rubber caps on vacumm ports for cracks and to make sure all are connected. If this isn't the problem use a propane tourch with out flame and go around the intake area with engine running . If the rpm picks up at a certian point you have a vacumm leak there.

Hope this helps, if so an accept would be appreciated.



Edited by FirstHogman on September 13 2005 at 11:56 AM

If more information is needed, please ask me.

Hope this helps, an accept would be appreciated.
Firsthogman
Love them Harley's
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Firsthogman -- Auto Service Technician -- 96% Positive Feedback on 300 Car Accepts
40 years as a mechanic on all type equipment.
Reply
September 13 12:02 PM (7 minutes and 3 seconds later)
         
Reply to Firsthogman's Post: Sounds like a very good solution. Could you please point me to a place on the engine to start checking the vacum lines? I can't even tell which is a vacum line.
Thanks
Dale
Customer (name blocked for privacy)
Reply
September 13 12:05 PM (2 minutes and 52 seconds later)
         
Is there a pictoral showing vaum lines?
Customer (name blocked for privacy)
Answer
September 14 12:47 AM (12 hours and 42 minutes and 33 seconds later)
         
ACCEPTEDCheck Mark
If you need a shot of fuel to get the vehicle started you answered part of your own question. There is a fuel problem Blazers are noted for fuel regulator problems If the regulator is tarnished chances are you dont have a leak but if you see a clean rim around it then a leak it is. This would cause hard starting. Although vacume leaks are a major cause of engine problems I dont think this is the problem in your case
Mike -- Auto Mechanic -- No feedback on 4 Car accepts
25 years in the Automitive industry and bus. owner
Answer
September 14 8:42 AM (7 hours and 55 minutes and 4 seconds later)
         
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Firsthogman -- Auto Service Technician -- 96% Positive Feedback on 300 Car Accepts
40 years as a mechanic on all type equipment.
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