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Jeep Forums: WJ Grand Cherokee Forum   10-14-2019, 09:49 AM
Replies: 4
Views: 338
Posted By djs99
Hallelujah!!! 99wjtx that did the trick! Saved me...

Hallelujah!!! 99wjtx that did the trick! Saved me an embarrassing trip to my mechanic. I am so grateful that these forums exist. Thank you for taking time to respond.

Now I have to figure out why...
Jeep Forums: WJ Grand Cherokee Forum   10-13-2019, 03:15 PM
Replies: 4
Views: 338
Posted By djs99
Bizarre malfunctions after using code scanner

Something very strange just happened to my 1999 Grand Cherokee (V8, Limited). First let me give background on what was already known to need repair: (1) driver window not working prob the regulator;...
Jeep Forums: WJ Grand Cherokee Forum   06-27-2015, 02:33 PM
Replies: 15
Views: 1,482
Posted By djs99
Well, cold air lasted about a week maybe even 10...

Well, cold air lasted about a week maybe even 10 days before it went hot again. Of course it stopped blowing cold the day that family arrived for a week long visit! Now that the family is gone, I...
Jeep Forums: WJ Grand Cherokee Forum   06-13-2015, 10:28 AM
Replies: 15
Views: 1,482
Posted By djs99
Update: went to mechanic

Mechanic flushed and refilled with R134a with dye - its now blowing cold. We will see how long it lasts, and then look for the leak. Charged me $150 for that plus an oil change.

He said that...
Jeep Forums: WJ Grand Cherokee Forum   06-02-2015, 11:48 AM
Replies: 15
Views: 1,482
Posted By djs99
I never realized that R134a was not the same as...

I never realized that R134a was not the same as Freon. For the record, I did purchase and use a can of R134a.

When I have the car on, AC running full blast, it blows strong and steady, but ambient...
Jeep Forums: WJ Grand Cherokee Forum   05-30-2015, 11:45 AM
Replies: 15
Views: 1,482
Posted By djs99
AC compressor cuts on and off repeatedly

1999 4.7L V8 Grand Cherokee - Turning on the AC blows very strong steady air but it comes out at ambient temperature. (And its HOT here in New Orleans!) I thought maybe a freon leak, so I bought one...
Jeep Forums: WJ Grand Cherokee Forum   05-16-2014, 09:56 AM
Replies: 18
Views: 13,378
Posted By djs99
UPDATE: 2 MONTHS LATER Its now mid may and...

UPDATE: 2 MONTHS LATER

Its now mid may and over two months since I put in a rebuilt PCM from allcomputerresources.com. Jeep has been running great so far, not a single stall, and no strange...
Jeep Forums: WJ Grand Cherokee Forum   03-11-2014, 02:26 PM
Replies: 18
Views: 13,378
Posted By djs99
FOLLOW UP: Put in a new battery (old one was...

FOLLOW UP:
Put in a new battery (old one was too dead to charge). So far running great. I guess the real test will be when summer temps arrive. Previously it was stalling when temps hit the 90s and...
Jeep Forums: WJ Grand Cherokee Forum   03-03-2014, 06:25 PM
Replies: 18
Views: 13,378
Posted By djs99
Yes, crankcase pos sensor was first thing my...

Yes, crankcase pos sensor was first thing my mechanic replaced. He checked other sensors too. Code reader was giving him wonky responses, sometimes none at all, said PCM and sensors were not...
Jeep Forums: WJ Grand Cherokee Forum   03-03-2014, 04:43 PM
Replies: 18
Views: 13,378
Posted By djs99
Success! At least, it started up, all electrical...

Success! At least, it started up, all electrical components seem to be working. Battery, unfortunately, not holding a charge. Next step will be to see if it makes it more than a couple of miles...
Jeep Forums: WJ Grand Cherokee Forum   03-02-2014, 12:15 PM
Replies: 18
Views: 13,378
Posted By djs99
Cool. Just one more Q: was it on the front side...

Cool. Just one more Q: was it on the front side (nut side) or the back side (torx head) of the PCM? Do you think it even matters?
Jeep Forums: WJ Grand Cherokee Forum   03-02-2014, 10:48 AM
Replies: 18
Views: 13,378
Posted By djs99
Sorry, just re-read your last post and I see that...

Sorry, just re-read your last post and I see that there is a bottom bolt on the PCM bracket. I guess I'll have to remove it to see if the ground wire eye hole fits over it. Couldn't get it on the top...
Jeep Forums: WJ Grand Cherokee Forum   03-02-2014, 10:46 AM
Replies: 18
Views: 13,378
Posted By djs99
Wj PCM ground wire location

Wow thanks for all the super quick responses! (I wish I could respond as quickly but its MardiGras here in New Orleans and Im heading out to a parade. Be back later today.)

So it does go to PCM,...
Jeep Forums: WJ Grand Cherokee Forum   03-02-2014, 08:11 AM
Replies: 18
Views: 13,378
Posted By djs99
Wj Where does this ground wire go?

1999 4.7 v8 grand cherokee.

I just replaced the PCM. Removed old PCM a few weeks ago, also had to remove TCM in order to get PCM out. Yesterday I put in the new PCM and bolted everything back into...
Jeep Forums: WJ Grand Cherokee Forum   02-08-2014, 01:06 PM
Replies: 6
Views: 662
Posted By djs99
can't disconnect elect connectors

Thanks for the replies. It was easy to get to and unbolt, only problem I am having is disconnecting a few of the wires in the harness that are preventing me form extracting the plate with the PCM....
Jeep Forums: WJ Grand Cherokee Forum   01-18-2014, 06:06 PM
Replies: 6
Views: 662
Posted By djs99
It looks fairly straight forward -- remove...

It looks fairly straight forward -- remove coolant reservoir which seems to be in the way, then remove PCM. I assume very first thing to do is disconnect BOTH battery terminals? I know it's pretty...
Jeep Forums: WJ Grand Cherokee Forum   01-17-2014, 11:13 PM
Replies: 6
Views: 662
Posted By djs99
How to remove computer?

I need to remove the computer from my 1999 Grand Cherokee and I am not sure how to proceed. I would appreciate it if someone can give me the steps necessary to get to and remove the computer.

I...
Jeep Forums: WJ Grand Cherokee Forum   01-16-2014, 09:45 AM
Replies: 43
Views: 3,567
Posted By djs99
SAME PROBLEM - how to remove computer?

Can someone explain or show how to access & remove the computer?

I have had the same stalling/crazy gauges problem on my 1999 Grand Cherokee (V8 qaudra). Started over the summer when temperatures...
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