Question about 1994 Chevrolet Caprice Classic

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I have a 1994 caprice classic LS w/a 4.3 V8 it will start and run about the third time I go to start it won't, key on I have 40psi when running it drops to 30psi . and I only have 8 volts at the fuel pump. what is the problem?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: my 1994 chevy caprice classic wont start

Put the key in turn it on don't start it wait 10mins turn the key off remove it waits 10 seconds repeat this 3 times this should help if not try this with another key if it still don't work your ignition switch ifs probably bad dealer must replace and reprogram new keys. I got this info from the emission wiz it helped me on 2 different cars

Posted on Mar 24, 2009

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SOURCE: 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

Posted on Mar 28, 2009

  • 202 Answers

SOURCE: Where is the IAT Sensor

It is on the air duct that goes into the engine. You will see a two wire connector w/ a sensor about 7 inches from the throttle body on the air duct. This is it.

Posted on Apr 17, 2009

rockitman187
  • 2559 Answers

SOURCE: timing marks and adjustment

The timing marks are located on the crank and cams,to get to them the fan,water pump,timing cover,and a few other things must be removed.

If you are just wanting to adjust the timing,(And the timing chains are not broken or jumped)You will do this at the distributor and you will need a timing light to do it correctly.

Posted on May 31, 2009

  • 1 Answer

SOURCE: I HAVE A 1994 CAPRICE CLASSIC LS AND MY

I had this problem with my '96. There is only one way to fix it, remove the speedometer from the car and have it repaired. It has an internal circuit problem. There is a guy on ebay who sells the service. 20,000 miles on mine since he fixed it and no problems.

Posted on Aug 27, 2009

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Jan 27, 2009 | 1994 Chevrolet Caprice Classic

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