98 F150 Starting problem
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98 F150 Starting problem
I have the 4.2 liter engine and am having a starting problem. It is always hard to start but will after sitting for a sufficient period of time. If you turn it off and try to start it ten minutes later, you can probably forget it. I've replaced all plugs and wires and 2 of the three oxygen sensors as well as the fuel filter and air filter recently. It is giving a check engine light with a lean fuel mixture code. I'm running out of things to try. The only other thing that seems remotely related is I had the fuel pump replaced a bit ago. It seems like the starting problems came some time after that but it may not be related.
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Joined: Sep 2002
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From: camp pendleton usa
98 F150 Starting problem
have you checked for any vaccuum leaks? when turning off the vehicle do you hear a hissing sound?
i had to replace a rubber grommet underneath the air plenum when i got the same reading.
i had to replace a rubber grommet underneath the air plenum when i got the same reading.
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Joined: Dec 2002
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98 F150 Starting problem
Did you ever fix your problem? If so, how?
I have a 97 4.2 F150 SC (57,500) with similar symptoms. I have had the occasional split-second rough start for as long as I've owned the truck, but lately it doesn't want to start unless I crank it several times. Warm or cold makes no difference, and it seems to be getting progressively worse. I don't trust the truck right now, so I won't take it anywhere until it's right. Thanks.
>I have the 4.2 liter engine and am having a starting
>problem. It is always hard to start but will after sitting
>for a sufficient period of time. If you turn it off and try
>to start it ten minutes later, you can probably forget it.
>I've replaced all plugs and wires and 2 of the three oxygen
>sensors as well as the fuel filter and air filter recently.
>It is giving a check engine light with a lean fuel mixture
>code. I'm running out of things to try. The only other thing
>that seems remotely related is I had the fuel pump replaced
>a bit ago. It seems like the starting problems came some
>time after that but it may not be related.
I have a 97 4.2 F150 SC (57,500) with similar symptoms. I have had the occasional split-second rough start for as long as I've owned the truck, but lately it doesn't want to start unless I crank it several times. Warm or cold makes no difference, and it seems to be getting progressively worse. I don't trust the truck right now, so I won't take it anywhere until it's right. Thanks.
>I have the 4.2 liter engine and am having a starting
>problem. It is always hard to start but will after sitting
>for a sufficient period of time. If you turn it off and try
>to start it ten minutes later, you can probably forget it.
>I've replaced all plugs and wires and 2 of the three oxygen
>sensors as well as the fuel filter and air filter recently.
>It is giving a check engine light with a lean fuel mixture
>code. I'm running out of things to try. The only other thing
>that seems remotely related is I had the fuel pump replaced
>a bit ago. It seems like the starting problems came some
>time after that but it may not be related.
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