1995 S-10 wont start

BUELLXB9RFB

MEMBER
1995 CHEVROLET TRAILBLAZER

I have a 1995 s10 Blazer that I have been having alot of issues with. It has 4.3lt vortec 6 and about 174000 miles on it. Before this week I had been haveing issues with the thing black smoking and running really rich. I have replace everything electrical and emission related. Now this week IT has been giving me this problem with being really hard to start. Ecspically after driving and letting it warm all the way up. I actually have to spray carb cleaner into the intake just to get it to start back up. And ideas would be really helpful. Thanks in advance JOe

Thursday, December 28th, 2006 AT 6:03 PM

2 Replies

KENVCR

MEMBER
105 POSTS

Joe,
By the sounds of your issue it is fuel related. Too much at sometimes and not enough at others.
1) Mechanically the engine starts correct? It runs and there is no definitive grinding or clunking noises? Rule out mechanical problems. 2) It starts, it runs, so rule out electrical problems.
3) Fuel system. It starts, fuel pump therefore is working. Now we need to know about the pressure. Typically the Fuel Pressure Regulator is going to be your problem. At the same time also replace the in line fuel filter.
These 2 parts are easy enough for you to do at home. Just unplug you battery before starting any work. You do not want to cause any sparks whatsoever while working with fuel. Extra safety measure.
Let us know what happens.
Kenvcr

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Sunday, December 31st, 2006 AT 1:15 PM

BUELLXB9RFB

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50 POSTS

Kenvcr,
OKay here are the pics I cant see really any washing here but it does indeed look like the FPR is leaking. I checked the egr and all is fine there. Im going to put a gm acdelco nutkit in and new injector since it is under warrenty still. I cant beleave this fpr on this injector is leaking again.

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Friday, January 5th, 2007 AT 7:18 PM