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2001 Seville STS
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56 Posts
Discussion Starter #1
hi,

i have 2 small questions,
1st, what oil i must put in the steering ? is dexron 6 is good ? (i will flush all existing fluid !)

2nd, each time i let my car outside, when it rain, the trunk transform to a swimming pool...
i have check the gasket all around the trunk opening and it seem to be in good state...
i suspect water comme from passenger side of trunk but i'm not sure...

can you help me ?
 

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Administrator
2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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70,383 Posts
The power steering uses a GM recommended hydraulic oil - NOT automatic transmission fluid. The proper fluid is a clear to clear-amber oil.

The trunk leak is discussed in this forum quite a bit. It is either the weatherstrip around the trunk body metal perimeter - there is a re-design weatherstrip available - or there is/are leaks in the several body seams around the trunk lip or tail light areas. Or, there may be leaks at the tail light and trunk lid light assembly studs. Or, down inside each rear fender lower quarter panel (under the carpeted boards) there are body ventilation vents. Sometimes one of the rubber flapper valves sticks open.

For the leak, get a trusted assistant and a water hose. You climb into the trunk with a strong flashlight and close the trunk lid. Have your assistant flood the trunk lid and adjacent body with the hose. look for water entering at the top front of the trunk weatherstrip OR in the lower center, right at the latch area. Also, out in the corners near the tail light assembly studs and wiring harness.

Google "cadillac forums seville trunk water leak"
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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70,383 Posts
This is approximately the color of my fluid in the reservoir at this time. I believe that I used a compatible Prestone product the last time I drained/refilled the reservoir.

Many companies make a GM-recommended fluid. It should be fairly easy to find en France.
 

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2002 STS, 2005 CTS 3.6
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413 Posts
As for the trunk leak, it is usually the seal, as it was an extremely poor design. Have a look at it, you'll see there are air holes all around it that, strangely face somewhat INWARD to the trunk, instead of OUTWARD. As this backwards designed seal fills with water in the rain or car wash, the water overflows out of these holes and into the spare tire well at the trunk base. Other than buying the redesigned seal, the trick is to cut a small hole in the bottom corner of the seal on each side of the trunk opening as it curves above the bumper.

This allows the water to drain out of the seal as it fills up and leak down over the bumper and onto the ground, instead of dumping inside. If necessary, you may even want to remove the seal along the base, clean and apply new weatherstrip adhesive.

Remove the spare tire assembly and trunk liner and let everything dry out for a few days to help get rid of the mouldy smell. Use a shop vaccuum to suck up the water out of the spare tire well and the trunk carpeting and you should be good to go.

I've fixed this problem on several 98+ Sevilles so far and the trunks remained dry.
 

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2001 Seville STS
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56 Posts
Discussion Starter #7
thank for all suggested thing for the water in trunk...

so, today i reveive my steering pressure hose, so it's time to change it ! :D

but, i always have trouble about steering fluid.. i go to my local cadillac (and other GM cars) shop. they give me GM 93160548 steering fluid... this fluid is green and writen on it for: some Opel cars, Cadillac BLS, and some SAAB cars
he say me i have absolutly no problem using this fluid in my seville...
why i'm disturbed, because when he take bottle, one of his guy say (i think it's the red fluid... (so, dexron III)) but he take the green one...

do you think i can use this fluid ? ... :S
 

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2001 Seville STS
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56 Posts
Discussion Starter #8
i mean because i'm in europe i found PS fluid that is not the same as in US...
2 years ago an other local dealer sold me Dexron VI as PS fluid (written on the bottle Transmission and steering usage..)
when i check some shops, i can find majority Dexron III as PS fluid (seem to be a standard fluid...)
 

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1996 El Dorado and 1991 Cheyenne Pickup
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140 Posts
Absolutely no difference for ps application, each is fine. I personally opt for dexron iii, but you really can use whichever you want. Thing with ps is that there's not that much pressure and heat, compared to transmission, so even the cheapest stuff will work.
 

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2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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26,323 Posts
As posted, these cars are designed to use power steering system specific fluid, NOT transmission fluid.
 

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2001 Seville STS
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56 Posts
Discussion Starter #11
hello,

1) Steering pressure hose
i have replaced the steering pressure hose today.

it seem the hose has changed, so need to reroute it...


but i'm not happy with this...
i think hose is too close to steering arm..


Hose is no more attached behind the heat shield..


very close to head too..


what do you think about that ? is it normal ??

2) Steering fluid level
now, what is the correct level for the steering fluid ?

is the maximum level is at top of hatched zone ? like a put on picture ? (i say this because under this zone, there is a "ADD" mark.)

3) Rust on fuel lines
one more question... i discover that the fuel line under car are rusty ! :( :(

what can i do for this ? do i need to change the 3 entire lines ? can i change only rusty part but how to do this ? (never done that)
where to buy ?

4) stabilizer bar
is it normal ?


bar link seem to be bad too ?



do you think i need to change them ?

thank you !!
 

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98 DeVille, 97 DeVille d'Elegance
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7,345 Posts
The PS hoses may have been redesigned over the years, someone may know updated parts numbers. There were issues will low speed growling being transmitted through the lines.
Not good on the fuel lines, you can patch and they sell end kits, I'd get on the soon and while your at it check your brakes lines especially in the rear.
Yes on PS level.
Those sway bar bushing look worn to me.
 

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2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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26,323 Posts
Yeah the bushings and links are worn.

The cross hatched section on the power steering cap/dipstick is the hot operating range. As long as it's in that range when hot, it's fine.
 

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2001 Seville STS
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56 Posts
Discussion Starter #14
Yeah the bushings and links are worn.
where can i bought the bushings for this cadillac ? (not found on Amazon and rockauto)
for link i have found this one. is it good ? (not axactly the same... :s big plastic spacer no long exist..)
ACDelco 45G0015

The cross hatched section on the power steering cap/dipstick is the hot operating range. As long as it's in that range when hot, it's fine.
ok ! on cold i must keep the level to bottom of hatched section ? i don't imagine how much the fluid expand..

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Not good on the fuel lines, you can patch and they sell end kits, I'd get on the soon and while your at it check your brakes lines especially in the rear.
do you know where i can bought this kit ? and how it work to make the "patch" ?
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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70,383 Posts
jjordan75, Your CTS question has been moved to its own thread in CTS, First gen.

I doubt that the Seville FWD steering system bears much resemblance to that in a CTS.
 

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98 DeVille, 97 DeVille d'Elegance
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7,345 Posts

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2001 Seville STS
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56 Posts
Discussion Starter #18
Remember to never use compression fittings on brakes.
why ?? if i understand what is "compression fittings"... i find many kit like this on internet.. or i misunderstand what your are writing... this is possible... :)
 

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2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
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26,323 Posts
Not sure why Rockauto doesn't list the bushings. Your best bet would be to get the part number from a dealer and Google it.

As for checking the power steering fluid level, you check and adjust it when hot. The reading when cold is irrelevant.
 

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2001 Seville STS
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56 Posts
Discussion Starter #20
MoistCabbage, is it possible my dead bushings can make some "klong" (like there is play in steering) or some "hit" in the steering wheel on non perfect roads or when i start running or when i start brake ?
 
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