Question about 1997 GMC Jimmy

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97 gmc Jimmy only runs when you pour gas in throttel body after gas is ran out truck dies

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If it has the vortech motor the gas pump most likely went bad.

Posted on Aug 08, 2010

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1 Answer

Throttel body


Check your fuel pump.
have someone turn the key on not starting
and listen for your fuel pump coming on.

Mar 19, 2014 | 1989 Chevrolet Camaro

1 Answer

My jimmy runs fine once it starts, but i have got to pour a little gas in the throttle body every time to start it


Fuel Pump. Fuel Pumps in some of the newer GMs cannot have a loss of more than 2-3 PSI otherwise cold start pressure is not there.

Oct 19, 2010 | 2000 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

1997 jimmy car shut off while driving. replaced


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.

May 12, 2010 | 1997 GMC Jimmy

1 Answer

2000 GMC Jimmy


Check your fuel regulator on also check your injectors - if you have a CSFI injection system you may want to replace it with a MFI upgrade kit. Trust me. - CSFI sucks

Feb 13, 2010 | 2000 GMC Jimmy

1 Answer

My daughter's 97 jimmy won't always start.


Did you check the fuel pressure and the fuel rail?

Mar 21, 2009 | 1997 GMC Jimmy

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