93 F150 Running issues
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93 F150 Running issues
I'll start off by saying I don't know much about Fords I have always been a Chevy and Mopar owner. I have a 93 F150 with I'm assuming a 5.8 in it as that's what is on the intake, the guy we bought it off of said he rebuilt it and it was a 5.0.
We got it at a decent price as we needed something to drive and the guy said he rebuilt the motor the could never get it to run right so that is why he sold it. When you first start it you have have to hold the accelerator to the floor then you have to keep it running for a couple of minutes before it will idle on its own and its the same way even when it's warmed up. When it is running it runs real ruff, it has all new plugs wires and everything and that didn't make a difference. I think it might be a tooth out of time. Does that sound correct to anyone?
Thanks for any help and if you need any other info let me know.
We got it at a decent price as we needed something to drive and the guy said he rebuilt the motor the could never get it to run right so that is why he sold it. When you first start it you have have to hold the accelerator to the floor then you have to keep it running for a couple of minutes before it will idle on its own and its the same way even when it's warmed up. When it is running it runs real ruff, it has all new plugs wires and everything and that didn't make a difference. I think it might be a tooth out of time. Does that sound correct to anyone?
Thanks for any help and if you need any other info let me know.
Cargo Master
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From: South Dakota
Is the 5.8 molded into the lower intake manifold? If you have a 5.8 and the guy that rebuilt it thought it was a 5.0 he would probably have gotten the spark plug wires wrong as the firing order is different between the two engines.
It would be a good idea to check the timing also to see if maybe the distributor could be a tooth off as you suspect. A few things to sort out to begin with.
It would be a good idea to check the timing also to see if maybe the distributor could be a tooth off as you suspect. A few things to sort out to begin with.
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Is the 5.8 molded into the lower intake manifold? If you have a 5.8 and the guy that rebuilt it thought it was a 5.0 he would probably have gotten the spark plug wires wrong as the firing order is different between the two engines.
It would be a good idea to check the timing also to see if maybe the distributor could be a tooth off as you suspect. A few things to sort out to begin with.
It would be a good idea to check the timing also to see if maybe the distributor could be a tooth off as you suspect. A few things to sort out to begin with.
Cargo Master
Joined: Jan 2004
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From: South Dakota
At any rate you will need to determine which engine you have. Probably the best way would be measure the distance between the valve covers. The valve covers are 2 inches farther apart on a 5.8.
Cargo Master
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From: South Dakota
I also have a 1990 F-150 with a 5.0 and the 5.0 is also molded into the upper intake in plain sight standing on the passenger of the engine.
I was going to measure the distance between the valve covers, but that is a daunting task with all the junk on these things.
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I have the 5.8 then that's what is molded into the top of the intake. So now I guess my first easy step would be to make sure the firing order is correct and all the plug wires are on correctly since the guy said it was a 5.0.
Now I just need to find a diagram showing me both of these and I can check that out and hope that it is just a messed up plug wire problem.
Now I just need to find a diagram showing me both of these and I can check that out and hope that it is just a messed up plug wire problem.
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Cargo Master
Joined: Jan 2004
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From: South Dakota
Now I'm wondering if it's possible to interchange the upper intake manifolds between a 5.0 and a 5.8. One wouldn't think so beings they have the numbers so clearly molded into the upper intake manifold. Does anyone here know? ANYBODY HERE KNOW??
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Does anyone know if this is possible? I would like to get the running issue figured out as I'm sure its in the timing someplace.
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