, I'll show it whos boss.
Power steering cap
Thread Starter
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Senior User
Joined: Jun 2008
Posts: 213
Likes: 0
From: Glendale, Az
Power steering cap
Whats with this friggin thing! I'm always putting it back on 
I cant belive I hadnt lost it yet, it seems to undo itself one or two times between oil changes. When I put it on I feel the rubber piece seal and give it a clockwise turn, but it seems to undo itself.
Maybe its just telling me it needs a flush
. What fluid should I use? full synthetic or just Dex/Merc?
I cant belive I hadnt lost it yet, it seems to undo itself one or two times between oil changes. When I put it on I feel the rubber piece seal and give it a clockwise turn, but it seems to undo itself.
Maybe its just telling me it needs a flush
. What fluid should I use? full synthetic or just Dex/Merc?
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
I used this procedure Click Here and Valvoline Syn-Power Mercon V ATF. Mercon V is now formulated to replace regular Mercon.
I have trouble getting the cap off.
I have trouble getting the cap off.
Thread Starter
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Senior User
Joined: Jun 2008
Posts: 213
Likes: 0
From: Glendale, Az
10-4, I was just wasnt sure on the "power steering" or "ATF" part. I use valvoline full syn. power "steering fluid" in my rock crawler / off roader just because the steering takes alot of abuse on the rocks and the syn. seems to hold up better than dino. At the same time I understand that power steering fluid and atf are about the same animal and one could be used in place of another.
I think I'm due for a flush anyways.
Thanks.
I think I'm due for a flush anyways.
Thanks.
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Brett Foote
Lead Driver
Joined: Feb 2000
Posts: 5,374
Likes: 46
From: Palm Bay, Florida
I'd say since your cap is loose fitting that you should get an aftermarket replacement cap at your local auto parts chain on the "HELP" rack, my experiance has been that THEY fit too tight, and may just be the answer for you.
Posting Guru
Joined: Apr 2000
Posts: 1,345
Likes: 0
From: NorCal
Mee Too!!
I have the exact same problem! I guess I've been lucky and found the cap just sitting on the frame rail every time (about 10) before I decided to become creative. 
I've resorted to zip tying the cap onto the pump, going over the top through the trough in the middle of the cap. Mine started doing it around 80k and has been doing it ever since. The first time I noticed my reservoir being open to the elements forced me to do a Mobil1 Syn flush. I wasn't experiencing any noise, but figured it was the right thing to do.
I've resorted to zip tying the cap onto the pump, going over the top through the trough in the middle of the cap. Mine started doing it around 80k and has been doing it ever since. The first time I noticed my reservoir being open to the elements forced me to do a Mobil1 Syn flush. I wasn't experiencing any noise, but figured it was the right thing to do.
Cargo Master
Joined: Jun 2003
Posts: 3,292
Likes: 6
From: Ardenvoir, Washington
Just be sure to use ATF fluid on our trucks.. I believe it is becuz of the Brake Booster and the Power Steering using the same oil..
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Yep -- if you put in PS fluid, your pump will REALLY howl. My Ranger's PS pump howled like a banshee the whole time I owned it. I drove it up to 92k before trading it on this one. I think some pumps are just noisy. I knew about the syn PS fluid trick, but never tried it. Then this one started making noise, so I flushed it out with Mobil1 Syn ATF and it quieted down noticeably. I think it's worth doing.
