4 lo no go
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Senior User
Joined: Apr 2003
Posts: 324
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From: TX
4 lo no go
My 02 will shift into 4hi without a hitch but it will not engage into 4lo at all. I have tried everything. The hubs engage in 4hi and works great. Could the switch be bad or is something else the culprit?
Elder User
Joined: Dec 2003
Posts: 848
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From: Kokomo
Foot does not have to be on brake, truck just has to be in neutral and stopped. I put mine in 4-low all the time, just put it in neutral and pull it on back, do have to tug on it a little to get it all the way back to 4-low...
Elder User
Joined: Dec 2003
Posts: 848
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From: Kokomo
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Lead Driver
Joined: May 2003
Posts: 9,303
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From: Lyndonville, Vermont
He almost did!!
"The hubs engage in 4hi and works great. Could the switch be bad or is something else the culprit?"
I think you slipped
Dick
"The hubs engage in 4hi and works great. Could the switch be bad or is something else the culprit?"
I think you slipped
Dick
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Mountain Pass
Joined: Jan 2004
Posts: 210
Likes: 1
From: Ixonia, WI
I had the contacts in my switch get dirty once, it would go in to 4lo and back to 4hi then in again and ect...... about every second or so. I popped the switch out and took it apart and cleaned the contacts and it works great now. Not saying that is your issue but worth a try. There is also 2 30amp relays that control the 4wd up by the brake master cylinter under a black cover. One is for 4hi and one is for 4lo, I pulled mine out and cleaned the 5 spades(pins) with my pocket knife. While I was doing all of this I went ahead and pulled my 2 plugs off of my T-case motor and sprayed some electronics cleaner in them, wouldn't hurt to clean those also. good luck
Also do a search on ESOF in this forum, I can't remember but I think it was big orn that had a very detailed post about ESOF with even the relay #'s.
Also do a search on ESOF in this forum, I can't remember but I think it was big orn that had a very detailed post about ESOF with even the relay #'s.
Mountain Pass
Joined: Jan 2004
Posts: 210
Likes: 1
From: Ixonia, WI
They sell those relays at your local autoparts stores,(I believe they are just plain old 30A relays) I don't know how well you are versed with electronics but you could test them(kind of a pain) or just by a couple new ones.
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Senior User
Joined: Apr 2003
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From: TX
Originally Posted by Brad99SD
I had the contacts in my switch get dirty once, it would go in to 4lo and back to 4hi then in again and ect...... about every second or so. I popped the switch out and took it apart and cleaned the contacts and it works great now. Not saying that is your issue but worth a try. There is also 2 30amp relays that control the 4wd up by the brake master cylinter under a black cover. One is for 4hi and one is for 4lo, I pulled mine out and cleaned the 5 spades(pins) with my pocket knife. While I was doing all of this I went ahead and pulled my 2 plugs off of my T-case motor and sprayed some electronics cleaner in them, wouldn't hurt to clean those also. good luck
Also do a search on ESOF in this forum, I can't remember but I think it was big orn that had a very detailed post about ESOF with even the relay #'s.
Also do a search on ESOF in this forum, I can't remember but I think it was big orn that had a very detailed post about ESOF with even the relay #'s.
Senior User
Joined: Feb 2001
Posts: 135
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From: Morgan Hill, CA
Also, don't forget that with a manual trans. you have to have the clutch pushed down in order to go into 4-Lo. I'm just glad that I read the manual before I went and complained to the dealer!
mike
mike
Mountain Pass
Joined: Jan 2004
Posts: 210
Likes: 1
From: Ixonia, WI
Glad to hear that it is working for you now stealth. Maybe the 4lo relay just had a bad connection. You don't have too but I also wouldn't hesitate to pop off you plugs on your Transfer case and spray some cleaner if you can locate them. They are kind of a pain if you have the off road package because of the skid plate, but not horrible. I had minimal dirt in mine after 100,000 miles because they have them sealed pretty good but I thought it wouldn't hurt to clean them anyway(too much time on my hands I guess, he he). My switch must have had a bit too much contact grease or something, just wiped the contacts a bit and away we went.