92 F250 Engine Code help

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Jan 7, 2006 | 11:50 AM

bobl-1

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Joined: Oct 2005

Posts: 5

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From: Elizabeth, Colorado

92 F250 Engine Code help

Hi All,

1st post, so please be gentle.

I've got a '92 F250 4x4 w/ 460 engine and E40D with 220K miles. Not sure if it's important, but it's also got a 4.10 rear, Banks exhaust & Intake air, tranny oil-temp gauge, Tach, and a TransCommand. Truck is primarily driven at altitude above 5,000 feet - we live in Denver.

Truck runs strong, no engine problems. When it's cold outside (<20F), the tranny shifts like ***** - very hard shift to 2nd (clunk!), slips out of 2nd (or 3rd) into neutral - then back in, and sometimes will trigger a check engine light. This only happens when the transmission is cold - below 140 on the gauge. Tranny works fine (well, for an E40D) when warm.

I pulled engine codes and got this: 11:11(koeo?), 33:56:67 (cm?)

I've searched the forum, but haven't found this. Any ideas?

Thanks much for any pointers. You folks are great - I've been lurking around here for about 6 months and have fixed several problems from threads on this forum.

Cheers!

Jan 7, 2006 | 09:01 PM

Popa Tim

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Joined: Jun 2004

Posts: 1,781

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From: Central NY

http://fordfuelinjection.com/?p=14

your truck is not maf (mass air) btw, and the second set of codes is indeed CM.

33 - egr valve opening not detected
56 - TOT sensor output is greater than Self-Test maximum value of 4.8 volts.
67 - Neutral safety circuit failure

the 33 and 56 could be vacuum related. I'd at least start there.
I'm not sure on the 67

Hope this helped some.
Tim