I am getting an ENGINE PROTECT warning light on the dash and the truck runs sluggish. What test equipment is available so that I can see PIDS and Codes ? Vehicle is sluggish due to it going into limp mode/engine protect mode. what sensors and systems are monitored by the PCM and what are common issues with these engines?
This truck came factory with a 5.9 cummins engine just fyi. i do have one in my shop with the same problem it has a engine protect light, it loggs a code on the ecm and when its active it derates the engine about 40% so its preatty notisable. this is no mechanical failure it is only use to protect the engine from severe damage. the question that i have is if there is a wiring schematic on the ford side because all my engine diagrams specify a 4 pin sensor and the truck only has a 2 pin, if any one has any info it would be greatly appreciated, i check this site constenly
Check your lift pump, if bad the injection pump will run w/o lubrication. Pump will be restricted to using fuel to the engine. It will self destruct. Best advice is to get to a dealer and find it before some thing bad happens. Good luck!!
Cummings is a very good engine, sounds more like you are having an issue with the turbo more than anything. That is were I would start, if the turbo is O.K look into getting your injector pump benched, that could also be an issue, if your pickup pump is not delivering enough fuel to your injector pump,over time this will wear your pump out.
Hope this helps you.
Cummings is not typically an engine someone installs in a ford vehicle.You must have had to do a lot of wiring modification just to achieve this. This alone is a great achievment for toady's vehicle design.You should get a pat on the back for that. Why you would be posting such a comment on a site like this looking for the typical melon head to diagnose your problem is beyond me.
I just gave you some ideas that would cause engine lag, one is turbo lag , and the other is injector pump issues, I know that dodge has had several issues in the past were there delivery pumps weren't supplying enough fuel and the injector pumps were running lean, causing the injector pump to fail.
Yes, I have used this site before " strictly for ideas" in the past not for diagnosing my problem, anyone would be a fool to use the information on here as a true diagnoses to there problems.
The answer to your question about diagnostic scanners, far to expensive for a back yard mechanic like myself.
Sorry I was of no help to you!
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The turbo is brand new 3 months ago. the injection pump was also gone through and injectors cleaned at the same time. I was able to locate the problem and it was a coolant level sensor in the radiator overflow tank. I cleaned it with some sensor safe spray and everything has returned to normal. Be careful giving advice that is both costly and wrong. thanks anyway. Im still trying to find diagnostic equipment for this vehicle though.Anyone who knows if there are diagnostic scanners available for this engine, Please chime in. Thanks
Ford Installed Cummins Diesel engines in their F650s starting in 96 and it was not an engine swap. I had mentioned that it was in LIMP MODE due to the Engine protect light being on. They designed it this way so that if there is a problem with the engine. it wont go to full boost and wont do as much damage to the engine. Its a fail safe mechanism that the built in. No worries on the other stuff. I flamed you cuz I must have not gotten laid that day. Im sorry.
The problem was a coolant level sensor in the overflow tank. It was dirty and I lightly cleaned it with a wire brush and sensor cleaner and the engine protect light went off and the computer allowed the engine to return to normal running condition. If there are any sensors that are bad or out of range,the computer turns on the engine protect light and it goes into bypass or "Limp Mode" to protect the engine during overheat or other problematic conditions. All is normal now that we cleaned the sensor. thanks for your response.
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