Content Inside :
THE NUTS AND BOLTS OF ELECTRICAL DIAGNOSIS. Steve was working on a 1992 Ford F250 pickup with a 7.5L gas engine and an E4OD transmission, with 152,000 miles showing. The truck would intermittently upshift late and hard. We decided to bring it into the ATRA research facility to track down the source of the problem. The first few things we noticed were slow cranking and the engine was running very poorly. simple service and repair manual guide, The engine had an off-idle tip-in stumble, it would surge during acceleration and cruise, and its power was quite noticeably reduced. 1), which explained the slow cranking. The battery was also discharged, having only 12.2 volts at the terminals even with a surface charge just after shutting the engine off. After going over all of the grounds and giving the battery and terminals the attention they needed, we verified the charging voltage and alternator output were good. But our shifting problems persisted. Look at the wiring diagram in figure 5: The PSOM receives the AC signal from the differential speed sensor and sends out a square wave vehicle speed signal to the PCM. Because the speedometer maintained a good, steady reading, we knew the PSOM was getting a good signal from the differential speed sensor.
Tags : ford f250 pickup, electrical diagnosis, nuts and bolts, e4od transmission, ford f250, psom, ac signal, speed signal, speed sensor, surface charge, square wave, vehicle speed, speedometer, pcm, volts
If you see unrelated pdf files with the description or copyrighted material published, please report to us, we'll correct/delete it it as soon as possible.NONE OF THOSE MATERIALS ARE HOSTED IN THIS SERVER NOR UPLOADED BY ME IN SOMEONE'S SERVERS. Read our DISCLAIMER for more detail.
We are neither affiliated with authors and brands nor responsible for its content and change of content.
Information contained herein is provided "as is" without warranty of any kind, either expressed or implied, including any warranty of merchantability or fitness for a particular purpose. In no event shall ANYONE be held liable for any loss of profit, special, incidental, consequential, or other similar claims.