Ambulance tanny shifting problem

[Jimbo]

The E4OD is basically overly complex and expensive junk. In diesel ambulances they are lucky to last 75,000 miles. Compound that by letting the crooks at A***o get in your wallet and you have a real problem.

It still sounds like a "morning sickness" problem. With it now being warmer, you dont have a real cold transmission when you start out anymore. I cant believe that radiator flush had anything to do with it.

Have you ever noticed a problem wiht the spedometer or cruise control at the same time the trans is not shifting properly? The reason is that late model Ford trucks use a magnetic speed sensor in the differential instead of a spedometer gear and cable. This transmission has no internal governor. The computer needs accurate speed information to program shifts.

 

[brianl703]

A 1991 Ford ambulance won't likely have an electronic speedometer. If the VSS is suspected as the cause of the problem, connecting a multimeter to it and watching for a loss of output signal when the tranmission doesn't shift properly should confirm it.

 

[jc1990]

i have a 1990 ford high top conversion van with the 5.8 and e40d tranny let me tell u this van sux i can walk faster than this thing can go and i think part of that is due to the tranny it was rebuilt in 96 but it has never in my opinion shifted right i had an 85 econoline with a c4 and it was much better and that only had the 302 just get rid of that ford and buy a chevy lol

 

[unDummy]

http://www.usatransdoctor.com/DomesticFORDselectandAnswers.htm#4R70W