upshift reminder light
Thread Starter
Racer
Joined: Mar 2001
Posts: 312
Likes: 0
From: Mesa Az
upshift reminder light
After I had the rear gears changed from 2.59 to 3.54 I have noticed that while cruising in OD that the upshift light comes on at about 2500 rpm. It goes out if I lift my foot off the gas and the rpms drop to around 1900. I don't recall this ever happening with the stock ratio. Can anyone enlighten me as to what is happening?
Team Owner
Joined: Aug 2000
Posts: 28,015
Likes: 32
Re: upshift reminder light (88JDO)
You've got an Auto?
I have 2.59's and it comes one all the time when I am cruising say in 3rd at 45mph for a while.
It used to say "upshift for best economy" It no longer says "for best economy" wonder why?
I have 2.59's and it comes one all the time when I am cruising say in 3rd at 45mph for a while.
It used to say "upshift for best economy" It no longer says "for best economy" wonder why?
Le Mans Master
Joined: May 2000
Posts: 5,159
Likes: 1
From: Indiana
Re: upshift reminder light (88JDO)
Most likely, it is comparing the engine rpm to the vehicle speed for a specified pre-programmed period of time. Your gear changed caused almost a 30% "lower" gear ratio so for all it knows, you are not in your top gear. l'd bet a chip could be burned to include your new parameters.
Randy
Randy
Race Director
Joined: Apr 1999
Posts: 13,002
Likes: 4
From: Paint Hill NC
Re: upshift reminder light (A)
Howdy!
Did a search, found this thread. My 88 just started with the upshift light. Comes on for no reason at 60 or 70 or 75 mph cruising speed, put a little pressure on the throttle to load the engine, the light goes out. Went to 3.07 from 2.59 about 10,000 ago. Weird. Wondered if it might be a vaccuum issue? Interested in any more feedback.....
Did a search, found this thread. My 88 just started with the upshift light. Comes on for no reason at 60 or 70 or 75 mph cruising speed, put a little pressure on the throttle to load the engine, the light goes out. Went to 3.07 from 2.59 about 10,000 ago. Weird. Wondered if it might be a vaccuum issue? Interested in any more feedback.....
