Tsb 05-22-6

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Dec 4, 2007 | 12:07 AM

jaandmk

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Joined: Nov 2007

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Tsb 05-22-6

ISSUE:

Some 2001-2003 F-150, 2004 F-150 Heritage and 2001-2003 E-150/250 vehicles equipped with a 4.2L engine may exhibit the malfunction indicator lamp (MIL) on with diagnostic trouble codes (DTCs) P1131 and/or P1151 (system too lean bank 1 or 2). This condition may be due to leaking isolator bolts/port gaskets in the upper-to-lower intake manifold mounting area. This condition is sometimes intermittent and may not be apparent on a warmed-up engine.

I have been going crazy with this problem on my 2002 F-150, I have checked and or changed everything possible. Has anyone had this work done at Ford? remember what it cost?

Has anyone done it their self? How hard was it and is there anythig to watch out for?

Thanks in advance for any replies.

Dec 4, 2007 | 01:25 PM

BrianA

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Joined: Aug 2001

Posts: 4,532

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From: Trussville, Alabama

I've never done it, but it has come up on a few occasions here in years past.
Here is one thread I remembered:

https://www.ford-trucks.com/forums/5...isolator+bolts