Question about 1994 Chevrolet S-10 Blazer

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3 fuel pumps 2 spiders 2 fuel filters have to

3 fuel pumps 2 spiders 2 fuel filters have to spray starting spray each time to get it started it will stay started but when i cut it off wont start back with out stating spray

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What about the regulator

Posted on Mar 08, 2009

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Have a chev blazer 4.3 THROTTLE BODY V6 ,HAVE 2 SPRAY STARTING FLUID IN BREATHER & starts & runs all day,no problems . Shut off & in 5 min wont start again, unless u spray it 4 2 seconds again? Whats...


Maybe a problem in the fuel pump circuit. Check fuel pressure with engine off, and key turned to on, not start. If no pressure, diagnose the pump circuit at the fuel pump relay. One terminal for the relay would be the power feed for the pump. The engine computer signals the relay on for 2 seconds with key on to prime the system, also signals during engine cranking.

Feb 23, 2015 | Cars & Trucks

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1996 gmc 1500 vortech 5.7 stars then suts off


The spider is made of plastic. Heat kills with time. Replace the spider.

Feb 21, 2014 | Cars & Trucks

2 Answers

Will turn over but it wont start


What is the fuel pressure? these trucks need a certain amount of pressure to start, if low just 3psi it will not start, if you are sure the pump is good then you may bad spider injector. check fuel pressure first and also try spraying starting fluid into throttle body and see if truck starts. the pump needs 60 -66 psi to start the truck.

Oct 06, 2012 | 1998 GMC Jimmy

1 Answer

My 97 chevy astro wont start when cold but well when i spray starting fluid in the intake ive changed every thing in the fuel system including the pump


what is the fuel pressure with key on and engine off? since you mentioned spider injector assembly it has to be a vortec engine that requires 55psi to open the poppet valve in the injectors just to start.

Jun 12, 2012 | Chevrolet Cars & Trucks

2 Answers

I have to spray starter fluid in the intake to start my blazer


that indicates you have a fuel supply problem. a plugged fuel filter, or a fuel pump thats loosing its pressure. usually when you put starting fluid in throttle body. and it starts. thats a fuel problem.

Jan 13, 2011 | 1996 Chevrolet Blazer

2 Answers

My 1995 gmc sonoma 4.3 liter vin# with a W, Has a new fuel pump, new injector spider system, it only has 10 lbs of pressure, won't start. I understand it needs 50lbs of pressure to start. Where might the...


When the fuel pump was replaced ,did the pressure and return lines get put back in the right tubes?What do you mean by a new "injector spider" system,I've never heard the term.Have you checked for bent fuel lines?Where are you doing your pressure tests from?A little more info would be most helpful,thanks.

Mar 21, 2010 | GMC Sonoma Cars & Trucks

2 Answers

My blazer has a new fuel filter, egr valve and


As a quick test,fill-up the tank and do not top off.

Monitor the starting problem.

If you're starting OK until BELOW 1/3 of the tank then it's a weak/failing fuel pump.

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Mass air flow (MAF) senor provide air temp/density to the computer.

Buy a can of MAP cleaner and follow the instruction on the can.
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Nov 11, 2009 | 1994 Chevrolet S-10 Blazer

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