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Base fuel pressure for 98 4.6L F150

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Old 04-05-2007, 02:15 PM
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Base fuel pressure for 98 4.6L F150
What's the stock fuel pressure for a 98 4.6L?

I'm having idling problems and checked the fuel pressure. The gauge reported 30-35psi, is this normal?
 
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Old 04-06-2007, 05:29 AM
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That sounds about right. Clean the IAC and try again.


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Old 04-06-2007, 08:58 AM
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Your pressure reading at idle is normal. Be careful with the IAC when cleaning it. Ford does not recommend cleaning them, but replacing them. I have had luck cleaning them and some I have made worse.
 
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Old 04-06-2007, 12:08 PM
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IAC?
what is this?
I am having a stupid moment
 
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Old 04-06-2007, 04:03 PM
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The IAC is the Idle Air Control valve. It allows air to bypass the throttle plate when it is closed at idle. The PCM controls this valve.

JMC
 
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