Limp Home Mode
#1
Limp Home Mode
So i was driving...and all of a sudden the Powertrain indicatior light came on...then the Engine light came on...so I was able to drive the car home at max speed of 25MPH....which i think enters into a Limp Home mode as the Owner manual says. How bad can this problem be besides the fact I can't drive the car anywhere now till I figure out what went wrong? [&o]
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doc281 (10-11-2021)
#3
RE: Limp Home Mode
I dont have a code reader...so Im asking my buddy that sold it to me to see if he has one. I went to go back out the Jag right now to get the Mustang out...and it only light the Engine Light and the idle was back to normal...Im actually searching online right now about similar Limp problems and they say it can be the TBS...worse case...the tranny going bad. By buddy said he had just finished changing the Tranny old earlier this week.
#4
#5
RE: Limp Home Mode
When it happen ealier...the Powertrain light came on and went into Limp mode idling at 1500RPMs....so i pulled over...turned off the car for a few seconds. Turned it back on...and the Powertrain and Engine light were both on....but now only the Engine light is lit when i turn on the car and the idle went back to normal...the tranny was shifting good..but when i pressed on the Accel. pedal it wouldn't do anything.
#6
Guest
Posts: n/a
RE: Limp Home Mode
"turning on" is not a very helpful description.
Cars have key swithces that turn,,,, and have accessory, ignition and start positions.
the starter motor turns and cranks over ( or turns over ) the engine. when all is right, the engine runs, and we say the car is started. Better to say the engine is running.
Turning off also can be just enough to stop the engine but leave the accessories powered. Or could be off completey, with the key out of the ignition switch.
It is way oversimplified to say a car is on or off..
now I also dont understand how you can say the transmission was shifting "WELL" - ( side note - good is an adjective so you cant say shifting good) when the engine was stuck at idle.
Sorry to nitpick but these details are important to help understand and help. - Not to mention to give you some credibility so that we dont just say GO TO THE DEALER.
Cars have key swithces that turn,,,, and have accessory, ignition and start positions.
the starter motor turns and cranks over ( or turns over ) the engine. when all is right, the engine runs, and we say the car is started. Better to say the engine is running.
Turning off also can be just enough to stop the engine but leave the accessories powered. Or could be off completey, with the key out of the ignition switch.
It is way oversimplified to say a car is on or off..
now I also dont understand how you can say the transmission was shifting "WELL" - ( side note - good is an adjective so you cant say shifting good) when the engine was stuck at idle.
Sorry to nitpick but these details are important to help understand and help. - Not to mention to give you some credibility so that we dont just say GO TO THE DEALER.
#7
RE: Limp Home Mode
ORIGINAL: bojangles
......Sorry to nitpick but these details are important to help understand and help. - Not to mention to give you some credibility so that we dont just say GO TO THE DEALER.
......Sorry to nitpick but these details are important to help understand and help. - Not to mention to give you some credibility so that we dont just say GO TO THE DEALER.
Let me re-word the story. [sm=smiley14.gif]
I was driving aroudn 40 MPH...and I slowed down for a stop light...I was about to completely top when I felt sort of a clunk feeling on the vehicle.....I stopped and the Powertrain light lit up and my idle stayed at 1500RPMS. When I release the foot brake to accelerate....the Jag began to move slowly...as it got momentum it should shift gears and when I tried to accelerate...it wouldn't respond. So I parked on the curb and turn off the ignition completely....i waited about 10 seconds and started the car. The Powertrain light lit up right away so did the Engine light. I was not far from my home..so I headed back. It was still idling at 1500 and no response from the Accel pedal. I let the car slowly get momentum and as it did...i could feel the shifts....unfortunately the fastest it could go was 25MPH. Everytime i had to stop at a light...I had to get the momentum up all over again until i got home.
I parked the car and turned it off for about 30-45 minutes. Within this time frame...I began reading the Owners manual...and learn about the Limp Home mode and researched it online. Since I knew I wasn't going to drive the Jag to work tomorrow....I had to move the Jag to get the Mustang out..when I started the Jag up again...the idle was back to normal but the Engine light stayed lit. The Jag behaved normal from the time i moved it out and back into the driveway....and there it sits now. [>:]
I called my buddy that sold it to me so he can help me figure it out....I've only driven it for 3 days. Can't believe my luck.
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#8
Guest
Posts: n/a
RE: Limp Home Mode
This is what my dealer checked, in this order (car went into limp mode at red light after 45 minutes of interstate highway driving):
1. J-Gate shifter replaced (not the answer)
2. checked electronics and relays/switches (all checked ok)
3. replaced transmission under warranty (car had 9,000 miles on it at the time)
Total time in shop: 23 days (they gave me a Land Rover loaner car)
Sorry for the potentially bad news, but this was my X-type experience, good luck!
1. J-Gate shifter replaced (not the answer)
2. checked electronics and relays/switches (all checked ok)
3. replaced transmission under warranty (car had 9,000 miles on it at the time)
Total time in shop: 23 days (they gave me a Land Rover loaner car)
Sorry for the potentially bad news, but this was my X-type experience, good luck!
#10
RE: Limp Home Mode
I've been thinking that I might need a new transmission. Although when my Jag Tech buddy came over to pull the codes from the car....he told me he retrieve a TB error and that I should replace it. He replaced the trans oil since the previous owner changed it with regular ATF. That didn't resolve the problem so im thinking im going to change the TB. Worse case I have to change the transmission. [&o] I still get the powertrain light and the limp mode and it only occurs when im getting off the freeway as I come to a stop. The only way to get over that is to let the car sit for like 45 min to 60 minutes. Then it drives ok...but its starting to frustrate me. I can't have it leaving me stranded when in business. I think I should start driving the Mustang again.
#11
RE: Limp Home Mode
Ok, your first mistake was in replacing the trans fluid with regular ATF fluid. Jag doesn't take regular ATF fluid and using anything other than WSS-M2C922-A1 will destroy your transmission.
If your power train light is on and you didn't scan for codes, I wouldn't go and replace things just for the heck of it. If you have the money for a TB (350 at dealer) than you surely have 50 to have them hook up the scanner and tell you what’s wrong....will be easier and cheaper in the long run...and you won't be so frustrated..
If your power train light is on and you didn't scan for codes, I wouldn't go and replace things just for the heck of it. If you have the money for a TB (350 at dealer) than you surely have 50 to have them hook up the scanner and tell you what’s wrong....will be easier and cheaper in the long run...and you won't be so frustrated..
#12
RE: Limp Home Mode
ORIGINAL: racerx82
Ok, your first mistake was in replacing the trans fluid with regular ATF fluid. Jag doesn't take regular ATF fluid and using anything other than WSS-M2C922-A1 will destroy your transmission.
If your power train light is on and you didn't scan for codes, I wouldn't go and replace things just for the heck of it. If you have the money for a TB (350 at dealer) than you surely have 50 to have them hook up the scanner and tell you what’s wrong....will be easier and cheaper in the long run...and you won't be so frustrated..
Ok, your first mistake was in replacing the trans fluid with regular ATF fluid. Jag doesn't take regular ATF fluid and using anything other than WSS-M2C922-A1 will destroy your transmission.
If your power train light is on and you didn't scan for codes, I wouldn't go and replace things just for the heck of it. If you have the money for a TB (350 at dealer) than you surely have 50 to have them hook up the scanner and tell you what’s wrong....will be easier and cheaper in the long run...and you won't be so frustrated..
I didn't replace it myself...my buddy that I bought it off from...he changed it with ATF before he sold it to me....so it only had that oil in there for about 1,000 miles. I had a Jag Tech refill with proper fluid.
Im not replacing things out of the blue....A Jag Tech buddy of mine scanned the codes and it said there was a TB error...he recommend me to change it.
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