Question about 2001 Chevrolet Blazer

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Will a fuel regulator work instead of buying a spider pack?

I was told that I would have to buy a ''spider pack'' to fix my 2001 blazer by this shop but another mechanic said I probably just need a fuel regulator-which one is right and the most economic? It turns over but won't start.

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  • 2scary Mar 29, 2009

    have a 2001 chevy blazer with the same problem it has a 4.3 engine car started up fine went to store an back when i went out the next day to go some where it wouldnt start it turns over an acts like it wants to start but doesnt i check for fire on 1 cyclinder which it has fire i can hear the fuel pump run when key is turned to on position 


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2001 doesn't have a spider pack. Gm quit using that in 1996. Have the Fuel pressure checked.

Posted on Mar 09, 2009

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Posted on Jan 02, 2017

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I have a 2000 Chevy Blazer 4.3 4 wheel drive. It stalled and would not start again. The garage said the fuel pump and fuel regulator first , hen they replaced that they now say its the spider assembly on...


No.
The spider is one injector that supplies six small lines going to the cylinders instead of having one injector for each cylinder.
I would ask for a partial refund for parts and/or labor on the fuel pump job if that did not fix the problem. They should apply some or most of that cost to the cost of replacing the injector assembly if they diagnosed the problem as being the pump first.

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1 Answer

Using to much fuel and running rough


How about the spider injector that might be the reason your vehicle is running rough and using up tp much fuel. The fuel regulator is part of the spider injector and it costs about $40. or $ 50. but if the injectors are bad then you will have to replace the spider injector, which will cost you $200. or less. From my own experience dont jujust change the fuel regulator and then have to buy the spider injector. It is best to make sure that it is not the injectors also. The fuel regulator is know to go bad on 95 GMC Jimmy believe me I have had to replace many other parts because of the spider injector.

Good luck

Lady Janette

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1 Answer

At what mileage should you replace spider injectors on 2001 chevy blazer ls


Lack of power , clogged catalytic converter . maybe ! Before replacing parts have the exhaust back pressure tested .

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My 01 chevy blazer will idle rough. it gives me error codes, p0300 and p0135 and p0141. where do i find these problems


Hello your po135 is o2 sensor bank 1 your po141 is O2 sensor bank 1 sensor 2 and your pO300 is random multiple cylinder misfire these problems are your oxygen sensors and engine misfire pO300 is you engine missing o2 sensors are switches in the exhaust system the engine misfires are the engines cylinders missing.

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I am about to buy a 2001 chevy blazer 4WD 4.3L 4door from a small dealership. A code comes up on the computer as the truck is misfiring in cylinder #4, they have replaced the Cap, rotor, the plugs and the...


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2001 blazer will crank fine but wont start unless


what is the fuel pump pressure for a 2001 chevrolet blazer 4.3

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94 jimmy turns but wont start, I replaced the fuel pump and


see if your getting fuel to the top, find the fuel rail on the top of the motor you will see a bleeder valve push in the the little serator valve and see if fuel comes out. if not the pressure regulator could be bad. if none there take the filter loose on the pump side and see if fuel comes out there. i believe this has the spider type injector setup on it and this could be bad.

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2 Answers

2000 blazer 4.3 hard to start (fuel problem)


Do you have the fuel tester hooked the in the overgrown air valve on the fuel rail in the back of the engine? Or do you have the fuel line unhooked in the back and hooked to the pressure pump? You want the fuel pressure to be in that 60 lb range so if you are hooked into the pressure valve on the fuel rail allowing fuel to go through, then I am betting it is the fuel pressure regulator. To get to that, you have to take the throttle body off and take the plastic plenum that covers the injector packs. On the back of the mount where your six pack of injectors are sits the pressure regulator. If it is faulty then it is dumping fuel instead of holding the pressure like it should.
Get a Chilton or Clymer manual and it shows you in pretty good detail how to fix it. I've done it to my 98 S10 with the same engine.

If you unhooked the fuel line so you are losing pressure from the line back to the pump then I would say your pump is letting fuel back to the tank when it shuts off. My money is on the first possibility though.

Good luck

Mar 28, 2009 | 2000 Chevrolet Blazer

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