Any reason CEL would come on after...

drnls

 
Joined
Oct 7, 2004
Messages
250
Location
S. Texas
Any reason CEL would come on after... Found the problem

Decided to change transmission, diffs and transfer case fluids today. Just drained the trans and re-filled with 6 quarts. Drained the other three and re-filled. While I was down there decided to change out speedo gear I've had for two years. Replaced w/ no problems. Warmed up engine, went thru the gears several times - trans fluid level - a little above normal. Went to Lowe's and on the way home CEL light came on. Any ideas? Does the computer have to be reset when changing speedo gears? I currently have 134,000 mi. I'll try and run it by Auto Zone tomorrow. Nelson

Thanks to those that answered. There is a little "pin/key" that came out with the old gear - didn't install with the new. Should have paid more attention. Nelson
 
Last edited:

NorCalDoug

problems solved daily...
 
 
Joined
Oct 27, 2003
Messages
6,285
Location
uhhhh...duh...Northern CA
My trans drain/refill works out to 4 quarts. I wouldn't think too much tranny fluid would spark a MIL coming on. Never heard of the speedo gear doing that either.
 

TX_TLC

 
 
Joined
Apr 29, 2003
Messages
1,480
Location
Texas
Pull the code or have it pulled at Autozone for free...this will tell you.


My bet is on..."coinsidence".
 
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