Question about 1992 GMC Sierra

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Starts and runs but when i give it gas it starts to miss, like it needs gas

I changed the fuel filter and replaced the fuel pump and pressure regulator and 10 months ago. this just started happening

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  • 3 Answers

Have you changed the spark plugs? Some times under a load they will miss fire if they are bad

Posted on Dec 08, 2012

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Posted on Jul 01, 2008

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SOURCE: 1999 Yukon cold start problems.

1999 Yukon Start Issue - I have replaced the octopuse, battery, fuel filter, fuel pump, still having problems starting in cold weather, sometimes after a heavy rain.

Any suggestions?

Thanks

Posted on Dec 08, 2008

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SOURCE: 2000 gmc jimmy wont start fuel pump comes on and cuts off...

When you hook the pressure test guage to shrader valve on fuel rail what it reads is what the pressure is from pump, around 60 p.s.i. all you need to do is hook up the guage and turn on key, you do not have to turn engine over, and if pump is good it will shoot up to 58 or 60 right now.

Posted on Feb 14, 2009

66 chrgr
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SOURCE: 2000 gmc jimmy wont start fuel pump comes on and cuts off...

the fuel pressure if leaking could cause this the regulator is located under the intake plenum but you should smell gas .if you dont then most likely the pump is bad ,the pump will come on for 2 seconds when the key is on then go off it will not stay on with just the key on only when you crank it will it .so have your fuel pressure checked with a gauge.

Posted on Mar 22, 2009

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SOURCE: Engine cranks, won't start. Three days later, it starts???

probaly a fuel pump its common for vehicles to do that the best thing to do next is a fuel pressure check to verifiy its the pump

Posted on Apr 15, 2009

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Before died it sputtered and backfired, gave it throttle it died. Towed to my house and turned it over many times, then it started. I pushed pedal to give it gas and it died.


What's missing ? Spark or fuel ? Just because you replaced the fuel pump and filter does not mean it's getting fuel . Did you check fuel pressure , the electrical circuit ? Did you hook up a spark tester to see if there is spark ? Watch this video from Eric the car guy . No Start Diagnostic Basics EricTheCarGuy Do you know what a fuel pump relay is ? Fuel Pump Electrical Circuits Description and Operation

Jan 08, 2017 | Cars & Trucks

1 Answer

Car runs fine at times then will not start. Sprayed carb cleaner in air filter and then it starts but dies when i start. The next day car starts and runs fine.


It sounds like your car isn't getting the proper amount of gas. You say your mechanic changed the fuel pump and the regulator. Id have him run a diagnostic tool on it to see if it throws any other codes. Its getting fire. Try changing the FUEL FILTER. it maybe clogged. maybe the pressure regulator is not giving it enough pressure to push the gas into the engine or maybe the fuel pump is only working at times. Does it run good and then start to spit and spudder then die? if so its not getting gas some how. Idk if you can adjust the pressure regulator or not. i mostly work on old school cars.

Apr 07, 2014 | 1998 Saturn SL

1 Answer

Will start but wont stay running


No the missing O2 sensors would not keep it from running. The missing exhaust pipes might not help matters. No exhaust system would cause a lack of back pressure.
I would want to know what base fuel pressure is with a gauge before and after cranking. Your thought about bad gas is legit, today's gasoline is only good for about 2 or 3 months before it starts gelling up.
Did you replace the inline filter the last time you put the new pump in ? And are you sure the pump is getting power after the key is released?

Feb 23, 2014 | Ford Windstar Cars & Trucks

3 Answers

2000 blazer runs rough and dies when gas pedal pushed to floor.


sounds like you need to change your fuel filter or you may need a new fuel pump relay

Jan 23, 2013 | 2000 Chevrolet Blazer

2 Answers

95 chevy blazer vortec 4.3 changed fuel pump 2 days later it started to bog and sputter when giving gas change fuel regulator dont see any leaks or spray from the spider or the in lines they were replaced...


Check for a fuel filter problem..... sometimes the newer fuel pump can **** up debri from the bottom of fuel tanks that the old pump did not have the flow to **** up.

Jan 16, 2011 | 1995 Chevrolet Blazer

2 Answers

A 460 engine that acts like its not getting enough fuel. Will start but runs as if only on half the cylinders missing badly or such.


Check your running fuel pump pressure. If (as I suspect) it's too low, first try changing your fuel filter. After changing the filter, recheck the running fuel pump pressure. If still low, check you fuel pump pressure regulator. If OK, you may need a new fuel pump.

Also probably would be a good idea to replace you air filter.

Good luck!

Jan 09, 2011 | 1990 Ford F250

1 Answer

2000 taurus duratec has problems staying running when you first start it.the rpms drop and the car stalls out. i have to give it gas and keep giving gas to keep it running for about 5 min then it runs...


sounds like you are running lean , i would start by changing the fuel filter and check for fuel pressure using a fuel pressure guage at the shrader vavle on your fuel rail, if your fuel pressure is not above 35psi when you cycle your key on and you have changed the fuel filter i would recommend changing the fuel pump,

Dec 15, 2010 | 2000 Ford Taurus

1 Answer

When you first start the car it acts like it isn't getting gas & it misses then when you do get it going it runs ok but then when you shut it off & start it up again it does the samt thing &...


try changing the fuel filter. sounds like fuel problem. builds up fuel pressure when it runs loses when its cut off if fuel filter doesnt help probably the fuel pump needs replacing.

Sep 07, 2010 | 1993 Buick Century

2 Answers

1985 corvette wont start


NEVER use either!! EVER! It burns very dry and can destroy a gas engine! Just give it a bit of gas down the intake.But keep the can away after each try! Far away! Not sure how you are getting 32v?? That can't be volts! Silly question, but is there fuel in the tank?? Have seen this before! It would be great to learn how this all started?? [or should i say stopped] lol Check the fuel line for a pin hole. It sounds like it is sucking air. Really need a bit more info. OK Frankster016

Oct 23, 2008 | 1985 Chevrolet Corvette

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