AC and wipers

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Jul 8, 2018 | 02:09 PM

Sparkythetradesman

Thread Starter

Newbie

Joined: Jul 2018

Posts: 1

Likes: 0

Model: Cherokee (XJ)

AC and wipers

I have a 98 xj classic and when i accelerate the ac blows harder and the wipers speed up. What can cause this?

Jul 8, 2018 | 02:26 PM

ForcedInduction

Member

Joined: Jun 2018

Posts: 218

Likes: 18

From: AZ

Year: 2019

Model: Cherokee (KL)

Engine: 2.0T

No idea. This forum is for modern Cherokees from this century. Try the question in one of the forums for older Cherokees.

https://www.cherokeeforum.com/f2/

.

Jul 8, 2018 | 03:30 PM

Bugout4x4

CF Veteran

Joined: May 2015

Posts: 4,481

Likes: 18

From: Arizona

Year: 97

Model: Cherokee

Engine: 4.0

Quote:

Originally Posted by Sparkythetradesman

I have a 98 xj classic and when i accelerate the ac blows harder and the wipers speed up. What can cause this?

Alternator is not putting out what it should at lower RPM's or your battery cables have a poor connection.

You are in the right forum.

Jul 8, 2018 | 05:08 PM

4.3L XJ

CF Veteran

Joined: Aug 2008

Posts: 6,588

Likes: 495

From: Chico, CA

Year: 1986

Model: Cherokee

Engine: 4.3L with headers and full 3" exhaust system

Yes, your alternator is probably getting weak and not putting out enough voltage at low rpms. I would pull it and have it checked. If you have a volt meter you can check it yourself at various rpms. You will probably find the voltage below 12 at low rpms