KMCBOSS
RED GT owner
Perhaps the solution to this problem is........don't ever put the car in storage - drive it at least every couple of weeks!
Tachometer Stopped Working
- Thread starter BillyGT
- Start date
MAD IN NC
Proud Owner/ BOD blah bla
BlackICE
GT Owner
I had one bad tender. The red light would stay on for days where in the past it would go off withing 48hrs. I checked the battery voltage and it was about 13.7 and the light was still red. I threw it in the trash and swapped it with another tender and things are back to normal.
This is a Tender Jr. that only puts out 750ma. IMHO this can't fry the gauges when the battery is connected. It's malfunction can only shorten the life of the battery.
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MAD IN NC
Proud Owner/ BOD blah bla
GT35065 - was it the Deltran Battery Tender (Cooltech or other) or the one supplied from Ford with the car that you had plugged in?
GT35065
GT Owner
It is the Deltran Battery Tender, and it appears to be working properly. I have four of them, and have had pretty good luck with them. Had one go bad on another car (quit charging) and they replaced it promptly. I didn't get my car out yesterday, had a little rain. I plan on taking it out today to see if any thing changes. Confusing why the temp guage and tach would quit and all other guages are fine.
Rick
Rick
GT35065
GT Owner
It was my impression that the one that came with the car was not so hot. Great trickle charger but no on or off when battery is charged. I thought the Deltran was the better choice. I'll take a look at the Ctek. Not familiar with that one.
Awsum GT
GT Owner '18
I've used battery tenders for years and have never had an issue. The have worked great for me on 6 or 7 cars that they are hooked up to.
GT35065
GT Owner
Kayvan
GT Owner
- Jul 13, 2006
- 4,782
The OEM one works fine; it came with a one pager that states it keeps the battery "topped up", and turns itself off
http://www.fordgtforum.com/forums/showthread.php?t=13488&highlight=battery+charger&page=2
I have had it on 3 winters (Nov-April) and it starts on first push button. Even had first time in '06 when I had to use the key to get in (after not having it on for 2 mos) and it recharged the battery too.
The CTEK is provided in trunks of Ferraris, SLRs, Astons, BMW Z8. It has some higher level electronics and people rave about them.
Battery Tenders have many happy users....but the one failure is one failure too many. And your post is the 3-4 here alone. I dont think they are deffective, I just think the smart technology gets hung-up if you dont routinely plug and unplug them for the red/green light to cycle. Not sure if surges, or polarity or something its not protected from, hangs it up, put it happens. If you go months without an unplug/plug, it could be showing the false green light.
http://www.fordgtforum.com/forums/showthread.php?t=13488&highlight=battery+charger&page=2
I have had it on 3 winters (Nov-April) and it starts on first push button. Even had first time in '06 when I had to use the key to get in (after not having it on for 2 mos) and it recharged the battery too.
The CTEK is provided in trunks of Ferraris, SLRs, Astons, BMW Z8. It has some higher level electronics and people rave about them.
Battery Tenders have many happy users....but the one failure is one failure too many. And your post is the 3-4 here alone. I dont think they are deffective, I just think the smart technology gets hung-up if you dont routinely plug and unplug them for the red/green light to cycle. Not sure if surges, or polarity or something its not protected from, hangs it up, put it happens. If you go months without an unplug/plug, it could be showing the false green light.
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ShelbyStang
Active member
My dad has an '05 GT, and the tach began failing a week ago. It went up in increments and then back down in increments. We tightened the connections on the battery and took it out for a drive. Tach was doing the same thing. Went up and down in increments and then the oil pressure gauge died. The tach is now stuck on 1k and oil pressure gauge shows no response. Any suggestions or help would be gladly accepted 
. He doesnt want to have to buy a new tach.
. He doesnt want to have to buy a new tach.ShelbyStang
Active member
it has just over 11k miles on it. About 3k miles put on it this year and its driven at least once a week. The battery has never been charged. There have been no battery or starting issues. We have had issues with it stalling twice after filling the tank full, but no other problems. No issues with any of the gauges until a week ago.
Empty Pockets
ex-GT Owner
GT35065
GT Owner
Finally got mine out for a drive yesterday. Similar problem to ShelbyStang's dad's car. Could get tach to slowly climb above 3000, then slowly drop down to 2500. Not keeping up with engine RPM's at all. Turn car off and tach sits at around 2500. The strangest thing as mentioned before is my temp guage is stuck at 135 and never moves at all. Both these guages quit working properly at the same time after four months of storage. All other guages function normally. Neg. cable already cleaned, contact good, battery was float charged with Deltran during storage as mentioned before. Deltran is functioning normally. Battery seems fine, and is always kept on the Deltran.
Any body have any thoughts on other things to check before I have Ford check car? I have a decent GT tech at local Ford dealer. Hopefully Ford might offer some assistance since car only has 1800 miles on it. Sure seems to be happening to a number of cars.
Rick
Any body have any thoughts on other things to check before I have Ford check car? I have a decent GT tech at local Ford dealer. Hopefully Ford might offer some assistance since car only has 1800 miles on it. Sure seems to be happening to a number of cars.
Rick
Empty Pockets
ex-GT Owner
If all else checks out, the pblm COULD be that magical, mystical $5K gauge control box (whatever it's called) that has puked on a couple other member's GT's. :ack