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G35 Limp mode-dead battery

Tiny
INFINITI2007OWNER
  • MEMBER
  • 2007 INFINITI FX35
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 39,900 MILES
What sort of things can make my 2007 infiniti g5 sedan go into limp mode, where it will only go 1 mph? Something similar to my current predicament happened a few years ago, and the "throttle body" was replaced under warranty.
This time the "limp mode" was almost immediately followed by a dead battery, after driving about 15 miles and starting normally. After I got it parked, I came back after 30 minutes to see if it was "fixed" and it started slowly. The next time I tried minutes later. It needed a jump and started quickly, but then stalled while driving it to get it closer to the tow truck.

Could the battery be the culprit/alternator?
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Thursday, February 24th, 2011 AT 8:39 PM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
A weak battery with a faulty charging system can cause driveability problems.

Seems you have a charging fault and that should be looked into first.
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Friday, February 25th, 2011 AT 12:12 AM
Tiny
INFINITI2007OWNER
  • MEMBER
  • 2 POSTS
After 5 long hours, the service guy said that it was fixed! He said that after a warranty repair 2 days ago after the dash over the cluster was replaced, a connector pin got pushed out when plugging it back in. As I drove it the pin worked free and the lack of input from the dash freaked out the computer, and circuits were left closed and killed my battery. After getting it back it seems to run fine. We will see.
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Friday, February 25th, 2011 AT 4:03 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The explanation is plausible, a power supply had been interrupted due to the loose wire.

Glad to know the problem has been fixed.

Have a nice day.
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Friday, February 25th, 2011 AT 10:27 AM

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