4.2L Emission Troubles
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From: Santee US
4.2L Emission Troubles
I need some help regarding my 4.2L in my F150. The problem is my truck has these idle problems and the check engine light is on. Here's a quick scenerio, I am driving to work and I get on the freeway and everything is cool, then I go to an exit and stop at the light. The truck's idle begins to bogg down like there's a problem with the Air/Fuel ratio.
So, I borrowed a friend's scan tool and did a diagnostic scan on the engine. It came up with P1537 and P1538, meaning that the Intake Manifold Runner Control Bank #1 and Bank #2 are stuck open. I then checked my vacuum lines and they looked ok, I also replaced my EGR valve. Never the less I still have Emission Troubles and the "check engine" is still on. If there is anyone who can give me some help troubleshooting on this problem, please respond back.
Thanks.
So, I borrowed a friend's scan tool and did a diagnostic scan on the engine. It came up with P1537 and P1538, meaning that the Intake Manifold Runner Control Bank #1 and Bank #2 are stuck open. I then checked my vacuum lines and they looked ok, I also replaced my EGR valve. Never the less I still have Emission Troubles and the "check engine" is still on. If there is anyone who can give me some help troubleshooting on this problem, please respond back.
Thanks.
4.2L Emission Troubles
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omar1746
1987 - 1996 F150 & Larger F-Series Trucks
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Mar 15, 2016 08:43 PM
mdjohnson
1997 - 2003 F150
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Sep 13, 2006 07:20 AM
