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I have old carit still have low milest, The truck has know spark we thought it was the fuel pump but it not.what do you think?

I have old carit still have low milest, The truck has know spark we thought it was the fuel pump but it not. he put the engine gunk in the caruertor and it seem like like it want to start but could not keep it going. what you think the battery is good and and changed change some fuel pick up plug?

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Posted on Jan 02, 2017

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SOURCE: The truck won't start, Fuel

Fuel pump replaced, crank sensor replaced, coil, wires and plugs all replaced, now truck acts like it's flooding out and won't continue to run.. problem started with truck shutting itself off while driving. you could let it sit and cool off and it would restart but only for a few minutes..

Posted on Jul 27, 2008

  • 17 Answers

SOURCE: 94 s10 blazer wont start


Posted on Aug 23, 2009

Testimonial: "no havent tried that....but the car seems like its turning over but doesnt starte"

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SOURCE: suburban low pressure from fuel pump

Try checking the fuel filter and then the pressure regulator on the rail. If the pressure regulator is bad it will not let the pump push enough pressure. And if the filter is clogged then it will also not let the engine get enought pressure. I have seen pumps starter going out by losing pressure. I have also seen aftermarket pumps quit after about a week unles you did not change the whole assembly.

Posted on Sep 27, 2009

Testimonial: "Thanks! I was unaware of the regulator. We did check the filter. Great info!"

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SOURCE: my chevrolet astro van 2000 won't start it make

check the coil it may be arking out the top have somone try to turn it over wile u look at the coil to see if thars arking the coil is on the left side behind the tranny stick good luck

Posted on Feb 18, 2010

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SOURCE: no spark when trying to start the engine on 98 chevy blazer

I have a 98 bravada where I was not getting no spark and no fuel, after replacing few parts it came down to the ECM fuse was blown. After replacing the fuse it ran for 20 seconds and stopped again. It blew fuse again. Put 30 amp fuse and it continues to run. Problem now is the heating and cooling is off. Been told could be a short in cable or something in ECM is shorting. Was told by parts guy at Checkers that if putting higher amp fuse in blows as well there is definite problem with ECM. As of now have not had ECM checked.

Posted on Mar 04, 2010

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Will a knock sensor code cause a no start situation?

The spark should be blue not orange.
But given the story of how it stopped running, I would expect to find water in the gasoline.
Did you drain the tank and put fresh gas in when you changed the pump ?
Did you check with the station to see if other people had problems from the gas that day ?
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Engine will not run. This car sat thru the winter in a unheated garage. I have spark, I have fresh gas. Thinking that the fuel pump was dry, I turned the egnition key to on position with out cranking...

try some starting fluid (either).

Inspect the wiring at the fuel pump (if not in the tank).

Alternately, have the psi tested on the fuel line.

Are you certain there is enough fuel and the car is not uneven (as on a hill preventing a low fuel availability to get to the fuel pump to pump such that it can pump the fuel?)

Another stupid question - have you looked at any of your sensors -- such as the crankshaft positioning sensor?

This should give you a couple ideas anyway..
Best regards

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With it just stalled you need to isolate the problem to fuel spark or compression to know that to do next. no spark inghtion modules fail. no fuel fuel filters and fuel pumps fail. Compression cooling system problems ( no fan) raditor coolant low) therostate stuck clossed. find something and reply and I'll be glad to respond to your post.

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I let my truck run really low on gas in the cold and I think it may be frozen gas lines, the truck turns over but is not getting it's fire just thinking it might not be getting it's gas could I thaw it out...

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You can test for spark this way. Pull a spark plug wire, and then insert either the end of a phillips screw driver or an old spark plug. Now, keeping your hands away from the metal, hold the screwdriver shaft very close but not touching an engine ground. Or, if you are using an old spark plug, touch the plug end to a ground. Be careful to have a very close gap to ground to avoid damaging your ignition system. Now have a helper turn the key to start the engine. If you see a spark jumping the gap of the spare plug or from the screwdriver shaft to the ground, then you know you have spark.

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