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I have a 1997 f250 with 460/7.5 engine extended cab rear wheel drive auto trans. I need to replace a DPFE sensor. It is mounted on firewall. It has one vacuum line and a three prong plug.
I have replaced it before so they used to have it. NAPA no longer has part. Theirs has two vacuum ports on it. Can I plug one of the ports? Guys at napa offer no ideas. Everyone I lookup online show two ports on sensor. Thanks.
Your picture shows a MAP sensor, in most cases a '97 HD truck would be OBD1 with the MAP/SD version of the EFI system. Your truck would have to be OBD2 mass air to have the DPFE version of the EGR system.
A DPFE sensor looks like this with 2 vacuum lines.
thanks so much. The truck is odb1. And the part pictured as map sensor is exactly it. So most guys wouldn't know that what they have in their hand is not a dpfe sensor but a map sensor. I was trying to go by the book, but the parts don't look like either book I have.
Well Code 126 does indicate an issue with the MAP signal. You can test it with a cheap meter that can measure frequency or go the parts replacement route. Do not throw the old MAP away until you have cleared the Stored Codes then re-run the KOEO tests and Stored Code display. If Code 126 goes away you are golden.
Truck was running rough. It would die sometimes at stoplight. I have replaced MAP sensor two times before. I have one book that covers to 2003 and doesn't cover my 97. The other book stops at 1997 and covers a lot of trucks before mine.
How hard is replacing coast clutch solenoid? Right before checking the codes, the driver window motor went out. I also pulled a trailer to move some things out of storage and I haven't been using trailer for a couple years. It pulled trailer fine except for wanting to stall. I will continue to put truck back together and look up which parts I need, or find a mechanic.
Thanks a lot.
If you have had repeated MAP sensor failures check the connector and the wiring. If you are using aftermarket parts then I suggest to pony up for a Ford/Motorcraft version. Check to see if there are signs of moisture getting into the MAP sensor. The cowl seal may be worn/torn/missing above the sensor.
The coast clutch solenoid is part of the solenoid pack inside the transmission. Not sure it is available as a discrete part. First suggestion is check the solenoid pack connector on the passenger side of the transmission. The 1995 and later connectors are the improved version but still could be contaminated with moisture, grime, trans fluid. Clean both ends of the connector regardless of the presence of contamination. Clear the Stored Codes then go through a few drive cycles. Re-run the KOEO tests and Stored Code display.
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