'95 E.B Not downshifting

[rebel33382]

Took the truck (95 E.B> w/5.8L and Auto Tranny) on the interstate and it won't dowshift, any ideas???????????

Thanks in advance!

 

[BroncoJoe19]

Took the truck (95 E.B> w/5.8L and Auto Tranny) on the interstate and it won't dowshift, any ideas???????????
Thanks in advance!

Your engine and transmission are computer controlled.

The computer uses sensors to tell it a number of different things and it controls actuators that push or pull mechanical levers (kinda). If one or more sensors aren't working properly, the computer goes "blind" and doesn't know what to do. If the computer can "see" but one of the actuators is broken and therefore can't follow the commands of the computer; the engine won't run correctly. The computer is preprogrammed with set values for each of its sensors, and each of its actuators. It will run a self check of all systems, like the space shuttle; it will compare its set value(s) to the value(s) it recieves from its sensors, and actuators. If any sensor or acutator is out of the "normal" range the computer will generate a "code." It will generate some codes on the fly, and others will be stored while you are driving. There is a simple method to "pull codes" out of the computer for one to use for diagnostic purposes. The ability to "pull codes" sets mechanics apart from being a troubleshooter or just a parts changer.

Fortunately all it takes to "pull" codes (find out what sensors or actuators are not working) is one piece of wire, a pencil and paper, and the ability to count to ten.

Here is a thread on how to pull codes.

http://broncozone.com/forums/index.php?s=&...ost&p=74581

 

[Seabronc]

Took the truck (95 E.B> w/5.8L and Auto Tranny) on the interstate and it won't dowshift, any ideas???????????
Thanks in advance!

Please only post your questions in one forum section. Posting in more than one section fragments the discussion.

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