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Jeep Cherokee, Grand Cherokee Cruise Control Problems

75 messages,  Last post on Mar 11, 2013 at 11:12 AM

You are in the Jeep Cherokee and Jeep Grand Cherokee Forum.

What is this discussion about? Jeep Cherokee, SUV

Messages Page 8 of 8

#67 of 75 2006 Jeep Grand Cheerokee Crusie Ccntrol Issues by klot95

May 27, 2011 (10:40 am)

My 2006 Jeeps cruise control isn’t working. When I hit the button the set the speed the computer accelerates it to insane speeds. It won’t stay at one set speed.
Also, when I turn the interior dash lights to a brighter setting they flash all the time and it’s very distracting. I have to turn the dimmer down very low where it’s sometimes makes the dash hard to see.
Does anyone know how to resolve these issues? I’m assuming they both can be related maybe some with the computer?

#68 of 75 2002 Jeep Grand Cherokee/no vent control or cruise... by mikeym

Jul 21, 2011 (5:14 pm)

I already checked the vacuum hose behind the passenger's side headlight, I'm still getting no vent control on my 2002 Jeep Grand Cherokee.
 
That's until I saw the the main hose running into my intake manifold (at least that's what I think it's called), was totally rotted through! Needles to say, I have to replace it, but I'm not too sure what part number it is... I've included some links to some photos if anyone could help me out, or point me in the right direction.
 
Thanks,
Mike
 
http://i46.photobucket.com/albums/f101/mccamike/vh1.jpg
http://i46.photobucket.com/albums/f101/mccamike/vh2.jpg
http://i46.photobucket.com/albums/f101/mccamike/vh3.jpg

#69 of 75 Re: 2006 Jeep Grand Cheerokee Crusie Ccntrol Issues [klot95] by smahimes

Jul 27, 2011 (5:59 am)

Replying to: klot95 (May 27, 2011 10:40 am)
I was wondering if you ever found the solution to this issue. I just bought a 06 Jeep Grand Cherokee Laredo yesterday and the cruise control doesn't work. Just like yours klot95. When I activate the cruise control, the vehicle jumps up to insane speeds and wont stop unless i turn the cruise control off. Does anyone know how to resolve this issue. Please help!!!!!!

#70 of 75 Re: 2002 Jeep Grand Cherokee/no vent control or cruise... [mikeym] by chrisinva1

Jul 30, 2011 (3:02 pm)

Replying to: mikeym (Jul 21, 2011 5:14 pm)
Looks like your issue is more an environmental one, the line you pictured should not have anything to do with the problem as described. The line pictured appears to be a breather for the intake. I could be off, but it sounds like you have a vaccume leak elsewhere.

#71 of 75 Re: 2002 JEEP GRAND CHEROKEE -- CRUISE CONTROL INTERMITTEN (re my Aug 12 msg) [bheiar] by katz7

Oct 11, 2012 (6:19 pm)

Replying to: bheiar (Oct 01, 2007 3:09 pm)
My 2002 Jeep Grand Cherokee had exhibited the same symptoms you describe here. When I turned on the cruise control it would disengage a short time later. When it disengaged the cruise light would go out. The time it would take for the cruise control to shut down was intermittent. Some times I would turn it on and it would go right out. I could get the cruise control to light back up when I turned the engine off an back on. I checked the vacuum hoses and they looked good. I then took it to Jeep for an estimate. Jeep told me the problem was the PCM and it will cost me $850 to fix it. I paid $84.00 for this estimate.
     I purchased a PCM through Auto Computer Exchange. Installed it, drove the Jeep for about 2 miles and the cruise control shut down again. I returned the PCM and received credit with no hassles from Auto Computer Exchange. I read your post and replaced the BRAKE LIGHT SWITCH. It's been 2 weeks now and the cruise control has not failed one time. Before it failed daily. Thank you for taking the time to post your experience here. This forum has saved me $850 and then some.

#72 of 75 Fix 2004 4.7l v8 by fordtough4

Nov 13, 2012 (2:30 pm)

2004 4.7l v8 This was a $1.00 fix the dealership told me 100 to diagnose and possible 1000 to fix. The vacuume line comes out of the passenger side of the manifold. you have to remove the 4.7 l v8 plastic air intake piece and air filter cover at the top. the vacume hose is can be seen there it goes to the firewall then straight to the underside of the battery behind the headlight. Check the entire cable. The underside of mine melted near the engine due to heat. I cut outside the melted area then bought high pressure gas line and placed both ends of the original vacuume line into the gas line (1.00 an Oreillys). Cruise and Vents worked instantly and the gas line won't melt like that cheap shit ">. Let me know if you need any help.

#73 of 75 Jeep Grand Cherokee Cruise Control Problems by sassygirl58

Dec 05, 2012 (8:09 am)

I have a 2002 Jeep Grand Cherokee and have read thru all the threads and wanted to say thank you to all that posted. The Jeep Cruise Control in my case would cut out shortly after engaging and only would restart after shutting car off but still only worked for a few minutes and cut off. After reading all there was on this site I had all vacuum lines replaced...still had the problem. I than replaced the Brake light switch, a fix of $13.99 from AutoZone and low and behold cruise is working just fine. I realize if I had taken the Jeep to Dealer this would have been much more costly. This is not a hard repair to make I have a friend that installed the switch and took him all of maybe 10 minutes after reading instructions that came with the part. So here's an idea if you are having the same problems....thank you to all that posted!!!

#74 of 75 Re: 2002 JEEP GRAND CHEROKEE -- CRUISE CONTROL INTERMITTEN (re my Aug 12 msg) [katz7] by sassygirl58

Dec 05, 2012 (8:12 am)

Replying to: katz7 (Oct 11, 2012 6:19 pm)
Thanks for your post it really helped, I replaced the brake light switch and now cruise is working, fix of $13.99 from AutoZone!!!

#75 of 75 Re: Thanks All [ncercos] by halli_34

Mar 11, 2013 (11:12 am)

Replying to: ncercos (Nov 06, 2010 1:47 pm)
My 1999 GC is doing the same thing where is the vacuum hose located that was off??

Messages Page 8 of 8

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