Fan Noise

[Ashley.ennis27]

Is it common for the fan or idle noise to be very loud? When car is running I can here the fan/idle from inside my house.

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[speedymart]

If it's hot outside it can get loud as hell while idling.

 

[Rhinebeck01]

Is it common for the fan or idle noise to be very loud? When car is running I can here the fan/idle from inside my house.

Forum search using words: TSB18-041-18 Rev. B

If you have a 2018 JL, there is a newer revision of the TSB that addressed the fan noise and more.
https://static.nhtsa.gov/odi/tsbs/2019/MC-10162534-9999.pdf

Note: There may be an even newer bulletin that supersedes this bulletin.

Old post on a forum I made in 2018:

Urgent: FCA has an update in regard to this TSB. It is TSB 18-092-19. IF, you own a 2018 JL, you will definitely want this update!

Why..... as now, (18-041-18 Rev. B, did not include) along with fixing the hi rev issue, TSB 18-092-19, addresses how the JL deals with a depleted Aux battery. Without this pcm update, if the 2018's, Aux battery is depleted, the 2018, JL will not try to start. With this pcm update, the 2018 will try to start, fail, but will start on the 2nd attempt so you are not left stranded / no start scenario.

2019 and newer JL's left the factory with this pcm update.

Again if you have a 2018 JL and it has not had this update, do get it done.

IF, your JL has over 36,000 miles and your regular warranty is finished, the dealer can do this update on your JL for free as the update is covered under the longer power train warranty..

 

[Ashley.ennis27]

Forum search using words: TSB18-041-18 Rev. B

If you have a 2018 JL, there is a newer revision of the TSB that addressed the fan noise and more.
https://static.nhtsa.gov/odi/tsbs/2019/MC-10162534-9999.pdf

Note: There may be an even newer bulletin that supersedes this bulletin.

Old post on a forum I made in 2018:

Urgent: FCA has an update in regard to this TSB. It is TSB 18-092-19. IF, you own a 2018 JL, you will definitely want this update!

Why..... as now, (18-041-18 Rev. B, did not include) along with fixing the hi rev issue, TSB 18-092-19, addresses how the JL deals with a depleted Aux battery. Without this pcm update, if the 2018's, Aux battery is depleted, the 2018, JL will not try to start. With this pcm update, the 2018 will try to start, fail, but will start on the 2nd attempt so you are not left stranded / no start scenario.

2019 and newer JL's left the factory with this pcm update.

Again if you have a 2018 JL and it has not had this update, do get it done.

IF, your JL has over 36,000 miles and your regular warranty is finished, the dealer can do this update on your JL for free as the update is covered under the longer power train warranty..

I appreciate that. I do have a 2018.

 

[azjl#3]

What the a##, never heard of this, 2018 here, never had a no start and I know my aux battery was dead for a year or more.

 

[roaniecowpony]

I dumped the aux battery for a Genesis system.

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