Question about 1997 GMC Jimmy

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1997 jimmy car shut off while driving. replaced

1997 jimmy. car shut off while driving. replaced fuel pump and filter. also replaced fuel pressure regulator. will start sometimes with gas poured in throttlebody and continue to run till engine gets warmed up,then it quits and will not re start. ran battery down trying to restart.

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SCAN IT SOUND LIKE IDLE SPEED CONTROL PROBLEM.BUT I AM LOOKING AT VACUUM LEAK AT THE INTAKE MANIFOLD BROKE VACUUM HOSE. OR FUEL INJECTORS SEALS LEAKING.

Posted on May 12, 2010

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1 Answer

There is spark and fuel up to rail but injector wont come on


sounds like the injectors are not getting a signal to squirt or no fuel . Have a pressure test done on the fuel manifold to check pump, pressure regulator pressure and filters.. check injector connection to ECM

Dec 24, 2013 | 1997 Mercury Cougar XR7

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My 1998 dodge neon wont start until i pour gas in the throttle body then dies out when i press the gas


What is the fuel pressure when the engine is running ?
Has the filter been replaced ?

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New starter,new alternator,new fuel filter,turns over wont start a little gas in carburator step on gas let off gas turn key starts then runs


check the fuel pump, it sounds like as it sits its losing pressure, when you first turn the key to the on ( not start) do you hear the fuel pump running then shut off? your fuel pump should keep pressure on the line at all times, so if you do hear the pump start it should be a very brief spurt and thats it, you can have the pressure checked at many repair shops for free or low charge,

Jul 03, 2011 | 1997 GMC Jimmy

1 Answer

97 jimmy runs when you pour gas into throttle body, fuel pumps is putting out 55 to 56 psi. but will not pickup the gas from the injectors, fuel manifold psi is 55 to 56psi. 1997 4.3 vortec engine


If the 8th letter of the VIN # is W which i bet it is than your fuel pressure is to low.

This engine uses a CPI unit to deliver fuel to the cylinders. The CPI unit consists of a central injector that feeds fuel to the poppet valve that are right above the intake valves. The poppet valves require high fuel pressure in order to open and deliver fuel to the cylinders at start up.

The reason why it starts and runs if you add a little gas through the throttle body is that once the vehicle is running the intake is under vacuum. The poppets can open with less fuel pressure in a vacuum. This is a real common scenario with these style injection systems.

A new good quality fuel pump (a/c delco or delphi are good pumps) and your fuel pressure should be back into spec of 58 psi or more and the vehicle should fire right up. Make sure you replace the fuel filter when you replace the pump.

Oct 17, 2010 | 1997 GMC Jimmy

1 Answer

CAR WONT START


If the car fired after pouring gas into the engine, then you should check your fuel pump, listen when you turn on the key, if you hear the fuel pump start and stop, then check your fuel pressure, all fuel injected vehicles have fuel pressure regulators, if your fuel pump isnt pushing enough pressure to the regulator the car will not start, and if it does start it wont operate properly, and may even leave you stranded.. If your fuel pressure is low, check the fuel filter, dirty filters restrict pressure, and are ALOT cheeper to replace than a fuel pump!

Sep 27, 2009 | 2001 Ford Focus

1 Answer

Just replaced the fuel pump and fuel filter in my 1997 P- Voyager


Fuel Pump relay, Fuel Pressure Regulator may be faulty. A relay can be tested with multi-tester, and a pressure tester for regulator.

Jul 27, 2009 | 1997 Plymouth Voyager

1 Answer

97 gmc jimmy loseing fuel power


The first thing I would recommend is that you change your fuel filter and recheck your fuel pressure once you do that. If is persists I would check your fuel pressure regulator as well. A fuel pressure regulator for a 1997 GMC K2500 ran about $45.00 and a fuel filter runs about $7-10.00. That's a lot cheaper to go that route first than to have to spend $350.00 for a new (Lifetime Warrenty) fuel pump that comes with a new sock and sending unit.

Mar 29, 2009 | 1997 GMC Jimmy

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1997 chev. suburban new fuel pump and regulator WILL NOT START


Check fuel pressure and fuel flow, If the pressure is lower than what is recomended injectors will not function correctly , no start condition (trys real hard though)

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1 Answer

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probably not fuel filter . probably going to have to remove the upper intake and replace the fuel injector spider(fuel inj assebly) if it is droping fuel pressure it is leaking into the upper manifold

Nov 29, 2008 | 1999 Chevrolet Blazer

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