Transmission Shops: Installation
Different Transmission, Same Problem?

When you install a replacement transmission and the car still has the same problem it came in for, it makes you think the problem is with the car, not the transmission. On the other hand, if you’re a shop that rebuilds “in house” and installs the same transmission that came from the car, you now face the dilemma of whether you misdiagnosed the problem or failed to resolve it in the rebuild process.

Extra Diagnostic Steps Prevent Mistaken Assumption

A 2000 Dodge Caravan with a 604 transmission was brought into one of our Certified Transmission locations with the customer concern of no shifts and no power. Our initial diagnostic checks confirmed that:

• The transmission was in limp mode
• The speedometer was inoperative
• The PRNDL lights were illuminated.

Making the Car Disappear

A 1997 Audi A4 Quattro 1.8L turbo (ZF 5HP19) with a complaint that the transmission lost reverse once it was warmed up.

This transmission has a history of chronic reverse problems. The vehicle was scanned with a MODIS and presented the following codes: 00652, 18010 and P1602.