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Fordanswerman
Fordanswerman, Ford Motor Company Certified Tech
Category: Ford
Satisfied Customers: 3305
Experience:  Ford Engine Master/Transmission Master/Chassis Master=Ford Senior Master also Diesel 7.3/6.0
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error code po238 how do i fix

This answer was rated:

error code po238   how do i fix?
HiCustomer Thank you for asking your question on JustAnswer. The other Experts and I are working on your answer. By the way, it would help us to know:
-What year is your Ford?
-What model is your Ford?
-How many miles are on your Ford?
-What type of engine is in your Ford?
-What have you already tried?

Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.
Customer: replied 7 years ago.

i lagged's from a start, blows black smoke out when turbo gets to 2200rpm and above once it hits 2500,2800 plus its starts to pull. no power till turbo feels/sounds like wide open......... went to autozone, litte scanner gave the po238 error code..........

rob

Customer: replied 7 years ago.
sry, its an 04 f350 with t he left over 03 6.0........

Thanks

 

Sounds like the vanes in the turbo are sticking. Very common issue with the turbos. I suggest replacing the turbo with a Ford dealer part. The replacement turbos are resistant from sticking.

 

Also check the egr valve for carbon deposits. Remove the egr valve and clean with wire brush and carbon cleaner and reinstall. You can try this first, and after cleaning and reinstalling if you still have the problem, replace the turbo.

 

Thanks

Customer: replied 7 years ago.
so most likely NOT sensor related? stupid question here........where the egr valve located?

Not likely. 03-04's where really prone to the vanes sticking and the vane ring cracking inside the turbo.

 

The egr valve is located towards the front of the intake.

 

Thanks

 

graphic

Customer: replied 7 years ago.

last question and ill accept.lol the turbo has been "whinning " loud of late.......vein related?

 

thanks again

 

rob

Yes, that was a clue that the turbo vanes are sticking.

 

Thanks

Fordanswerman and 2 other Ford Specialists are ready to help you
Customer: replied 7 years ago.

hey dude, i replaced the turbo, egr valve and the deal that goes inbetween the turbo. long valve lookin deal. truck runs better....... do i need to have the computer reset?

 

also when driving at like 80mph i stomp on the pedal....truck barley moves/accelerates...lost speed going up a mild hill, pullin nothing?? any advice?

 

 

rob

Thanks

 

How long has it been since the computer program has been updated? There have been many updates for this year truck?

 

Thanks

Customer: replied 7 years ago.
i ahve only had truck for 2 months, before that i dont know, zero since i have had it..

Thanks

 

I would suggest taking it to a Ford dealer and just having them update the modules to the latest greatest. You should see a huge difference after the reprogramming. They will probably charge about 1 hr labor to do it.

 

Thanks