Question about 1986 Cadillac Fleetwood

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Power steering failing at low rpm

I recently heard some groaning from my power steering, a sound I know all too well, so I check ed the power steering fluid resovoir and saw it need to be topped off. I have a very slow leak somewhere (I usually have to top it off every couple of months), but nobody can seem to pinpoint it. Here's the problem, though: After I topped it off, I went to work just a couple hours later and found that I had virtually no PS at low RPMs. Sitting in park idling, it was impossible to turn the wheel, but revving the engine a little it acted normal. Aside from the groaning before there was NO difficulty turning, yet only hours after adding some fluid it starts doing this. I'm at a loss. Anyone got suggestions?

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  • 24 Answers

The power steering pump is going out better of changing it than messing with it I'm sure it's a original pump

Posted on Mar 28, 2014

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Posted on Jan 02, 2017

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SOURCE: steering wheel hard to turn; power steering fluid is full

Hi,
Intermittent hard power steering, at the begining of the turn of the steering wheel, once disturbed past the hard part, works normal.
Had fluid change, I notice a sensor, on the control block tower of the rack, is this at fault ? thanks buckleyeng.

Posted on Sep 24, 2008

  • 22 Answers

SOURCE: when turning steering wheel - either way, clunking sound.

Sounds like you have a bad CV joint, this will make a clunking or clicking noise like you described only when turning, and varies with vehicle speed.

Have it repaired before it breaks and leaves you stranded, or damages anything else.

Posted on Apr 02, 2009

honeymokey
  • 3113 Answers

SOURCE: No power

Code eo52 indicates that the "long term" memory in the ecm has been reset. You will get this code when power is removed from the ecm. B448 is low refrigerant pressure. B552 indicates that the keep alive or "long term'' memory in the bcm has been reset ans a result of power being removed forom the bcm. What is a TPC? The throttle position sensor should be set at -1.0 to +1.0. at lowest position by the ICS motor. The throttle position sensor should be set at 10.5 to11.5 when the ICS motor is at its maximum extension. This is done by the ICS plunger adjustment is at its lowest point. . A mis adjusted TPS sensor will result in a great loss of fuel mileage. It appears the converter is stopped up on yours.

Posted on Apr 26, 2009

  • 1 Answer

SOURCE: 88 Cadillac Deville cooling fan runs continuously

I have a 1990 Cadillac Fleetwood and the cooling fans will not shut off....what is the problem?

Posted on May 29, 2009

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SOURCE: What's your problem?power steering unit

Sounds like a difficult-to-replace hose has ruptured. Sorry, I don't have a diagram. The hoses (only 2- pressure line and return line) run from the pump's reservoir down to the steering unit behind the engine. It's a cramped place and difficult to get your wrench there to loosen and remove the hose. Sometimes you need to lower rear of engine cradle 2 or 3 inches to get to it.
I'm not trying to dissuade you from doing it-it can be done by a DIY-er, but wear protective ear equipment if you are curse-prone like me(lol).
Put a half-pint or so of fluid in reservoir, start car, get underneath (Be safety conscious!), and wiggle the two lines. You will likely spot the break-careful it doesn't get all over you. With that big a leak, anything other than a line break would be easy to spot on the pump or on the rack and pinion unit in back of engine mounted on a cross member. Good luck.

Posted on Dec 04, 2011

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