Question about 1996 Ford F350 Crew Cab

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1996 ford 7.3 diesel trouble code p1661

Code keeps reappearing when the motor is shut down. It will crank everytime I clear the code, but the light comes back on and the motor shuts down.

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  • Kenny Blake May 11, 2010

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Can I clear transmission code without a code reader/

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Diesel. Reduce power lite turned on. Shut off engine and started back up - lite is off. Can it be driven?

Jerry, Drive to a good shop. So many things can cause reduced power light unfortunately. The first step would be to get the truck hooked up to a scanner/computer and have the computer scanned for trouble codes. One thing that you could try is to drain the water from the water separator that is mounted on the frame under drivers front door. If the PCM picks up on water, power is reduced until water is removed/drained. It could be an exhaust sensor that is reading faulty. Unfortunately from here its impossible to tell you exactly what the fault is because there are just so many engine sensor inputs that could cause your problem. Check the attached links, forums,instruction and guides, Good luck
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My car has a code p1661 that makes it fail inspection what is that code and how to fix it

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It may be a fuse or loose wire....MIL stands for Malfunction indicator lamp

The shop who failed it should be able to fix any issue with it as well.

If this answer helped please vote for it!

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Shut 05 Ford f350 diesel off wont start

when you get a code the PCM will keep that code and till it get easased. you need a scaner or disconect your battery for 1h. this should clear your codes. when the battery is disconected don't sit in your can. the air bags may deploy if you hit the steering collem or a sensor to hard. just let it sit. reatach your battery then try to start your truck. if the codes are still pressent you make need let the car sit for longer or bit the big one and get the shop to do it.

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