7.3 engine problem, IDM?
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Joined: Apr 2016
Posts: 48
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From: Norway
7.3 engine problem, IDM?
I just got my Ex back from a workshop, they have tried to fix the IDM that had traces of moisture in it. Now I got the truck back, but it's still got the same problem.
The symptoms are:
-Longer cranking time before start then normal, now it uses 2-3 seconds to start.
-Engine suddenly hiccups, or stalls, but will normally fire right up.
-Before I went to the shop, I could hear a "pfft" sound under the truck when the problem occured. Almost like something is releasing pressure.
-Tried to Rev the engine, would not go past 3400rpm, and when releasing the throttle, a hiccup occured. This has only happens once.
Codes:
Exhaust backpressure sensor
P1280 (got a new one, but don't think its my problem
The problem has been difficult to figure out, but sometimes I can drive for a longer period of time, say an hour, before this happens.
Please help me figure this out, it's a major pain for me. I have thrown so much money on this truck now
The symptoms are:
-Longer cranking time before start then normal, now it uses 2-3 seconds to start.
-Engine suddenly hiccups, or stalls, but will normally fire right up.
-Before I went to the shop, I could hear a "pfft" sound under the truck when the problem occured. Almost like something is releasing pressure.
-Tried to Rev the engine, would not go past 3400rpm, and when releasing the throttle, a hiccup occured. This has only happens once.
Codes:
Exhaust backpressure sensor
P1280 (got a new one, but don't think its my problem
The problem has been difficult to figure out, but sometimes I can drive for a longer period of time, say an hour, before this happens.
Please help me figure this out, it's a major pain for me. I have thrown so much money on this truck now
Postmaster
Joined: Sep 2007
Posts: 4,195
Likes: 6
From: Medford Oregon
I did a search and this is the last post from SANDRE ...
https://www.ford-trucks.com/forums/1...l#post17160858
SANDRE, it's strange that opening the hood would would increase the rpm unless you have an air intake issue. Can you post a picture of the engine up high, like on a ladder so we can see what the engine bay looks like?
https://www.ford-trucks.com/forums/1...l#post17160858
SANDRE, it's strange that opening the hood would would increase the rpm unless you have an air intake issue. Can you post a picture of the engine up high, like on a ladder so we can see what the engine bay looks like?
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sunogbahay
1999 - 2003 7.3L Power Stroke Diesel
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Mar 13, 2014 09:40 PM
