HI
I have a 95 f 150 5.0 auto aode trans my light keeps comming on once the truck warms up. after the light comes on my performance an fuel econ goes down Ive checked codes and I repaired trobles that existed I even went as far to replace the engine from my parts truck and I still have the same problem when I do an koeo test I cant pull codes I can than turn the truck off and restart it and light goes out. and stay out untill I start driving it. I can let it idle for 10 days and the light won't come on but the second I get in it and drive it down the road the llight comes on I is driving me freekn nuts

 

Have you checked the oxygen sensor? Very common problem, but it should post a code. Had this problem with on/off engine light & that was it.

 

If the AOD light is flashing, doesn't that mean the trans is throwing a code? Not sure to me but makes sense.

 

cats are more then likely plugged. that would throw a code to the 02 sensors.

 

If the computer won't go into diagnostic then the computer is usually bad.

 

thanks guys for all the info I replace o2 sensors changed the catts that was a previous problem I've had this truck for 7 years It has 219k I started having this problem around 190k on then my tranny went so I started to replace everything kinda restoring the truck. It was alot cheaper than buying someone else's $5,000.00 headache so the only thing I didn't replace was the computer and some relays it has a rebuilt motor and trans with all new sensors. I think Sean is right plus I think its the only thing I haven't replace yet oh yeah I finally got a code it was 211 pip erratic whats the pip and where is it

 

211= PIP circuit failure.
The PIP is the sensor in the distributor that tells the computer when to fire each cylinder. The distributor must be disassembled to change it. I have found that it's easier to just change the distributor. Be sure to test the circuit for power and signal before assuming the sensor is bad.

 

I'll try that but how do I test it and what voltages am I looking for and should I clear the code before I test or change the distrbutor. also If I test it and I have no voltage or signal than what do I do. do I change the distributor or do I have another prob

 

Sean should be able to offer more detailed info, but this link will give you some ideas to get you started:

http://www.autozone.com/az/cds/en_us...rInfoPages.htm

 

awsome thanks I'll try it