Which Type of Power Steering Fluid? - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 22 (permalink) Old 07-19-2011, 07:50 AM Thread Starter
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Post Which Type of Power Steering Fluid?

I performed a 2.7/3.2L swap. Both the doner 3.2L and my car are both 1998.

I have a 1998 Intrepid (LH) Service Manual (Chrysler), which states to NOT use automatic transmission fluid in the power steering system. Only use Mopar power steering fluid, or equiv.

Just FYI: this was at the time that ATF+3 was available.

I purchased the pdf manual from the gentleman (forgot his name) whom performs several of these engine swaps and his manual says to use ATF+4 in the power steering resevoir as it states in another pdf manual I have for 2002 LH models.

What changed with the pump from 1998 to 2002 that disqualifies ATF in 1998 and allows ATF in 2002, besides the new ATF+4 being available?

I am being cautious since the engine swap guy has done several of these but doesn't discriminate the use of ATF for any model from 1998 to I believe 2004.

Any clear explanation of what I should use and why is greatly appreicated. Great forum, guys (and gals)!
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post #2 of 22 (permalink) Old 07-19-2011, 09:16 AM
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from what i understand,, ATF4 donsent eat up the "O" rings like regular PS fluid did, , also,, atf 4 seems to make the steering a tad more quiet,, I have a 02 and did a ps flush, used reg ps fluid and i got a kinda a moan noise,, flushed it again with atf4,, all has been quiet for 2 years now.
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post #3 of 22 (permalink) Old 07-19-2011, 12:44 PM
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Chrysler came out with a TSB that specifies to use ATF+4 to service p.s. in all 2nd gens. That trumps earlier FSM's. The TSB no. and text has been posted before I'm pretty sure.
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post #4 of 22 (permalink) Old 07-19-2011, 01:01 PM
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I think the change to ATF was most likely made because some bean counter figured it would be cheaper to use the same fluid as the tranny.
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post #5 of 22 (permalink) Old 07-19-2011, 03:55 PM
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Quote:
Originally Posted by peva View Post
Chrysler came out with a TSB that specifies to use ATF+4 to service p.s. in all 2nd gens. That trumps earlier FSM's. The TSB no. and text has been posted before I'm pretty sure.
Spot on as usual but just to emphasize ...

I discussed this option with the dealer mechanic years ago and it's VERY IMPORTANT to flush the PS system completely if you change from PS fluid to ATF+4. The two fluids do not mix well.

Last edited by D76G12; 07-20-2011 at 03:57 AM.
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post #6 of 22 (permalink) Old 07-19-2011, 04:56 PM
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Quote:
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if you change from tranny fluid to ATF+4[/I]. The two fluids do not mix well.
lol tranny fluid is atf +4. atf stands for automatic transmission fluid :p
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post #7 of 22 (permalink) Old 07-19-2011, 09:06 PM
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Quote:
Originally Posted by D76G12 View Post
...it's VERY IMPORTANT to flush the PS system completely if you change from tranny fluid to ATF+4. The two fluids do not mix well.
Quote:
Originally Posted by tbaaqeel View Post
lol tranny fluid is atf +4. atf stands for automatic transmission fluid :p
I think he meant to say "change from p.s. fluid to ATF+4".
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post #8 of 22 (permalink) Old 07-20-2011, 03:59 AM
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Quote:
Originally Posted by tbaaqeel View Post
lol tranny fluid is atf +4. atf stands for automatic transmission fluid :p
edited

Quote:
Originally Posted by peva View Post
I think he meant to say "change from p.s. fluid to ATF+4".
Indeed! He wasn't around when I was really active so I guess I can forgive him the "lol" and primmer.


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It's good to see some of the Old Gang still around ...

Last edited by D76G12; 07-20-2011 at 04:07 AM.
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post #9 of 22 (permalink) Old 08-01-2011, 02:27 PM Thread Starter
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oops... see my next post below.
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post #10 of 22 (permalink) Old 08-01-2011, 02:29 PM Thread Starter
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Spot on as usual but just to emphasize ...

I discussed this option with the dealer mechanic years ago and it's VERY IMPORTANT to flush the PS system completely if you change from PS fluid to ATF+4. The two fluids do not mix well.
I would like to do a flush. The engine is replaced and system empty besides maybe some in the lines and the rack/pinion. Can I remove the resevoir return line to a container and have ATF+4 on standby to fill the resevoir to fill... then fire up the engine and call it good after the fluid looks nice and red... or do I need to flush a quart, close the system, cycle the streering wheel back n forth and then pull the return off the resevoir again and repeat the fill and flush into my container? I just want to do this properly without any doubt of leaving contaminants or mixed fluids in the system. Thank you!!
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post #11 of 22 (permalink) Old 08-01-2011, 02:42 PM
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I had mine done at the dealer just recently but wasn't there when they flushed the system, so I don't know how much is involved. I'll let someone who's actually done it themselves - and, hopefully, someone who did it a few years ago - answer the question.
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post #12 of 22 (permalink) Old 08-07-2011, 10:00 AM
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I'm following this thread too, I'm also planning a flush. I thought I would syphon out the resouvoir, let it run a bit and then drain the resouvoir again to hopefully get all the old stuff out. Does that that make sense? How much fluid does it take?
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post #13 of 22 (permalink) Old 08-07-2011, 10:59 AM
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I would remove the return line from the reservoir, and start running ATF+4 through the reservoir. Pump the return line into a bucket and flush it that way. That is how I did it a couple of months ago.
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post #14 of 22 (permalink) Old 08-23-2011, 10:25 PM
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how much ATF+4 do I need to have in order to do the flush?
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post #15 of 22 (permalink) Old 08-24-2011, 07:34 AM
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i am doing this now. 5 quarts of ATF4. Concorde lxi 2000
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