Help please
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Help please
I have a problem 96 f250 7.3 not exactly sure it only dose it in park and very little in drive. Rpm goes up and down a lot than after about a minute if doing it it shuts off what are common problems that could cause this? Someone told me it could be the throttle sensor or fuel pump? But need more answers before tearing into it please what do u think it could be?
Laughing Gas
Joined: Jan 2007
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From: Carbondale, CO
Probably get better response in the 94-96, 7.3 section. Maybe a moderator could move this. Would be nice with more info from a scan tool like oil pressures and codes. How many miles, oil in good shape, any check engine light?
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Ok today I was driving it and it sounded like it was starving for fuel. I got home popped the hood and it stopped right away could it possibly be the cold air intake. Ok. Y would it stop right away when I popped my hood? It was going to die at a stop light today but I pushed on the gas peddle hard and it didn't die. It was through codes also have another problem when my truck through codes the tranny acts up too. Engine oil is fine and miles un known as cluster broke
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What's the uvch. Ik cps is crank position sensor I also have another problem. Believe my glow plugs are bad. At points when I go to start the truck just the starter kicks in??? Believing glow plugs turn the key wait about 30-40 seconds from when the wait to start light comes off it starts finally? Bad glow plugs or??? It's a 96
Lead Driver
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From: western SD
What's the uvch. Ik cps is crank position sensor I also have another problem. Believe my glow plugs are bad. At points when I go to start the truck just the starter kicks in??? Believing glow plugs turn the key wait about 30-40 seconds from when the wait to start light comes off it starts finally? Bad glow plugs or??? It's a 96
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UVCH=Under valve cover harness It connects the glow plug relay to the glow plugs via the valve cover gasket. If you look at the valve cover gasket, you will see 2 wiring plugs on each gasket. These plugs connect to the glow plugs and injectors. The glow plugs pull a lot of juice, and if the connections aren't perfect, heat builds up burning the pins, and/or melt the connectors. If you are experiencing hard starts, this may well be part of your problem, along with some bad glows.
Ok y is should I also replace the fuel pump like it kind of acts like its starving for fuel but I pulled bowl and fuel was in it ran it for 10 mins checked again still fuel but than at points it acts like there is no fuel for it.
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Lead Driver
Joined: Mar 2006
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From: western SD
You can check the fuel pressure at the Schrader valve on the fuel bowl. the valve looks like a tire valve stem. The fuel pump is mechanical, so you need to check the pressure with the truck running if possible. You should have 60-70 lbs. while the engine is running. A cheap pencil type tire gauge works to check fuel pressure, but the fuel will ruin the gauge for tires. Has the fuel filter been changed lately? A dirty fuel filter can cause problems as it will starve the engine of fuel.
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Hotshot
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Did you replace the CPS or not ? geeze , my head hurts reading this.
So I would guess its not the fuel pump
Ok y is should I also replace the fuel pump like it kind of acts like its starving for fuel but I pulled bowl and fuel was in it ran it for 10 mins checked again still fuel but than at points it acts like there is no fuel for it.
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Not yet I haven't the person I just bought it off of last week said the truck never ran when he got it put that sensor in and it ran the sensor is only 2 mo this old could it go bad already
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You can check the fuel pressure at the Schrader valve on the fuel bowl. the valve looks like a tire valve stem. The fuel pump is mechanical, so you need to check the pressure with the truck running if possible. You should have 60-70 lbs. while the engine is running. A cheap pencil type tire gauge works to check fuel pressure, but the fuel will ruin the gauge for tires. Has the fuel filter been changed lately? A dirty fuel filter can cause problems as it will starve the engine of fuel.
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I do have a crack in the pan I'm fixing tomorrow would this cause this?
Laughing Gas
Joined: Jan 2007
Posts: 870
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From: Carbondale, CO
Ok today I was driving it and it sounded like it was starving for fuel. I got home popped the hood and it stopped right away could it possibly be the cold air intake. Ok. Y would it stop right away when I popped my hood? It was going to die at a stop light today but I pushed on the gas peddle hard and it didn't die. It was through codes also have another problem when my truck through codes the tranny acts up too. Engine oil is fine and miles un known as cluster broke
I'm sure dying when opening the hood was coincidence.
Low fuel pressure would be more noticeable under acceleration, but also great place to check.
Hotshot
Joined: Aug 2006
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I'm not sure what you're saying here. did you get a "Check engine light", yes or no? Can you retrieve codes with a scan tool or reader?
I'm sure dying when opening the hood was coincidence.
Low fuel pressure would be more noticeable under acceleration, but also great place to check.
I'm sure dying when opening the hood was coincidence.
Low fuel pressure would be more noticeable under acceleration, but also great place to check.