E4OD Coast Clutch Solenoid - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 5 (permalink) Old 08-24-2016, 04:44 AM Thread Starter
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E4OD Coast Clutch Solenoid

my truck in 3rd gear has slight engine brake with Overdrive On. and it acts the exact same with overdrive off. the trans has set no codes at all and i believe that may be the problem. Does replacing it require a entire rebuild? not much info around on it. Is there anyway to check the operation? also would the Coast Clutch Solenoid cause any other symptoms being stuck on

thanks!
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post #2 of 5 (permalink) Old 08-24-2016, 01:56 PM
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Re: E4OD Coast Clutch Solenoid

With the solenoid stuck on you're going to have a big problem in fourth gear. Either the coast clutch has to slip, or the overdrive clutch has to slip, or the rear wheels have to stop turning.

The coast clutch solenoid can be replaced by removing the pan. The trans stays in the truck.

Mark
Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
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post #3 of 5 (permalink) Old 08-24-2016, 04:03 PM Thread Starter
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So what could cause the coast clutch to be on in 3rd gear in overdrive? Thanks Mark appreciate it!
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post #4 of 5 (permalink) Old 08-24-2016, 04:04 PM Thread Starter
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Re: E4OD Coast Clutch Solenoid

If its only on in 3rd and not 4th
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post #5 of 5 (permalink) Old 08-25-2016, 01:50 AM
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Re: E4OD Coast Clutch Solenoid

The solenoid could have failed. It's likely that the coast clutch itself has come apart. That will make it drag on at different times.

Mark
Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
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