Need help with a 95 chevy

darin00 · 06-19-2008, 02:43 PM

I have a 95 chevy i just change the fule pump and now when i try to take off it dies on me it idles just find it only happens when you try to take off and then its hard to start back up can anyone help me?

bradrhale · 06-19-2008, 02:47 PM

have you checked to make sure your filter has not gotten plugged up?? in park, can you rev the engine without it dying or does it do it only at takeoff??

darin00 · 06-19-2008, 02:49 PM

well i put a new filter on it too and when you rev it up it dies too.

bradrhale · 06-19-2008, 02:55 PM

check fuel pressure. might be a busted pump that cannot keep enough pressure up to keep the injectors working.

darin00 · 06-19-2008, 05:25 PM

ok what if the fuel pump is ok could it be something with the injectors.

jman1973 · 06-19-2008, 07:00 PM

make sure the fuel filter is installed correctly
it only flows one way

darin00 · 06-20-2008, 11:10 AM

well i check to fuel filter to see if was on right and it is on right i also check the fuel pump pressure and its ok now i'm looking at the throttle body and the T.P.S would any of those make it stall when put in gear?

bradrhale · 06-20-2008, 12:22 PM

a tps malfunction would throw a code as well as make it do crazy things in and out of gear. what kind of pressure do you have right now?? injector problem might be there but doubtful since it ran fine before. why did you end up changing the pump in the first place??

z07 · 06-20-2008, 02:33 PM

Brad's got the next step for sure. Find out what the fuel pressure is now. In troubleshooting fuel pressure problems, people often attach a gauge and duct tape it to the outside of the windshield so they can see it under various loads.

EDIT: Disregard the 35psi and 45psi numbers in the next line. Sneaky's post below explains why.

If the pressure is ok at idle (35psi or so) and doesn't increase with RPMs (45psi or so) then the little diaphram in the fuel pressure regulator is done.

Sneakysportsman · 06-21-2008, 05:09 AM

Fuel press on a 95 is only 12 psi max. It a TBI.

06-19-2008, 02:43 PM	#1
darin00 Junior Member Join Date: Jun 2008 Posts: 8	Need help with a 95 chevy I have a 95 chevy i just change the fule pump and now when i try to take off it dies on me it idles just find it only happens when you try to take off and then its hard to start back up can anyone help me?

06-20-2008, 02:33 PM	#9
z07 Senior Member Join Date: Feb 2008 Posts: 176	Brad's got the next step for sure. Find out what the fuel pressure is now. In troubleshooting fuel pressure problems, people often attach a gauge and duct tape it to the outside of the windshield so they can see it under various loads. EDIT: Disregard the 35psi and 45psi numbers in the next line. Sneaky's post below explains why. If the pressure is ok at idle (35psi or so) and doesn't increase with RPMs (45psi or so) then the little diaphram in the fuel pressure regulator is done. Last edited by z07; 06-21-2008 at 08:09 AM. Reason: Sneaky is right I was wrong

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06-19-2008, 02:47 PM	#2
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,586	have you checked to make sure your filter has not gotten plugged up?? in park, can you rev the engine without it dying or does it do it only at takeoff??

06-19-2008, 02:49 PM	#3
darin00 Junior Member Join Date: Jun 2008 Posts: 8	well i put a new filter on it too and when you rev it up it dies too.

06-19-2008, 02:55 PM	#4
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,586	check fuel pressure. might be a busted pump that cannot keep enough pressure up to keep the injectors working.

06-19-2008, 05:25 PM	#5
darin00 Junior Member Join Date: Jun 2008 Posts: 8	ok what if the fuel pump is ok could it be something with the injectors.

06-19-2008, 07:00 PM	#6
jman1973 Full Member Join Date: Jun 2008 Posts: 14	make sure the fuel filter is installed correctly it only flows one way

06-20-2008, 11:10 AM	#7
darin00 Junior Member Join Date: Jun 2008 Posts: 8	well i check to fuel filter to see if was on right and it is on right i also check the fuel pump pressure and its ok now i'm looking at the throttle body and the T.P.S would any of those make it stall when put in gear?

06-20-2008, 12:22 PM	#8
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,586	a tps malfunction would throw a code as well as make it do crazy things in and out of gear. what kind of pressure do you have right now?? injector problem might be there but doubtful since it ran fine before. why did you end up changing the pump in the first place??

06-21-2008, 05:09 AM	#10
Sneakysportsman Senior Member Join Date: Jun 2007 Posts: 233	Fuel press on a 95 is only 12 psi max. It a TBI.