Sorry to bother you guys......air pump? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-13-2005, 02:24 AM   #1
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Default Sorry to bother you guys......air pump?

94 SSEI, my air pump is headed South I believe, I hate to even think about one from GM but will if necessary--------has anyone adapted a better pump in their place-------or not worth the bother?

I've about worn out the search function, didn't find a single thing mentioning the pump-----or my seach abilities $uck

Thanks.
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Old 10-13-2005, 08:29 AM   #2
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Tex..there'* plenty to find.. I'm not looking either (cause I don't wanna fail)

Basically if you want to try to extend it a while..pull it apart and lightly oil it. Sometimes that brings them back. Or hit a junkyard/wrecker and pick up another one. Pretty standard across the years I believe and many cars have them.
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Old 10-13-2005, 09:56 AM   #3
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OK thanks, I can do that.

Appreciated............TT
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Old 10-13-2005, 12:01 PM   #4
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Texas, what are your symptoms? Can you describe them for us? There are alot more components in that system than most people realize.
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Old 10-13-2005, 12:46 PM   #5
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OH, like when you set things in the trunk (like me fixing the 3rd lite ) or more people in the back than normal-----using the pump rarely to air someones tire up out of the rear port etc etc, where I used to hear it run for a few seconds to stabilize the ride height it now runs and runs-----sometimes takes til I get thru with what I am doing and remove the load before it will shut off.

Just seems worn, or no real volume being pumped.

I assume these are just nylon piston types in an aluminum bore-----kinds of pumps?

There are no leaks that I can find, I've been stem to sterm and found nothing, if there were a leak I would expect it to run continuously anyway. I also assume there has to be some type of backflow valve but I haven't spent enough time looking it over, has to be in/near the pump? Not that this would cure the volume issue, but could possibly be restricting?
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Old 10-13-2005, 12:55 PM   #6
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I know where your leaks are, but pulling the pump top off and cleaning/lubing the piston would help slightly.

http://www.williamwren.com/struts/elc.html

You have to jack the car up to test it.
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Old 10-13-2005, 01:40 PM   #7
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OK, let me ask since It isn't here for me to look at, going by the pics are you allowing the strut to fully extend when checking for leaks?

For some reason I can never see pics real well on the puter, they always seem dark and can't do much better with the controls on the monitor, so I can't tell-----is the pic showing air escaping internally? And is in such a large area with the strut compressed you cannot find the leak, exactly, just know it is coming from above?

Clear as mud for a question?

No doubt they are due, only has 171K on it but time will do as much harm as miles on something like that. Nothing on the suspension (well, really anything to speak of) has been touched, but my 96 Vortec pickup is going on 369K untouched as well, minus intake gaskets and internal trans repairs-------and it has had the crap worked out of it.

Oh, I should probably change forums but could I please ask, the Bonneville has also started leaking at the Master Cylinder/Booster, anyone know for sure the size of the bore of the master--------or is putting seals/pistons/honing in a thing of the past for most?

Thanks again

TT
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Old 10-13-2005, 01:53 PM   #8
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TT pull the wheels and look in the wheel wells. You'll see the struts. Spray them with soapy water and kick on the system.
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Old 10-13-2005, 02:06 PM   #9
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OK, will do tonite when I get back in.

TT
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Old 10-13-2005, 03:24 PM   #10
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TT, do it with the car jacked up by the frame so the struts can extend, and trick the ELC. To do this, disconnect the electrical connector on the selector valve in the trunk. It'* on the back side of the right rear passenger'* ribcage. Under the carpet. After this valve is disconnected, turn your inflator on manually in the trunk. This will force-feed your struts for the check.
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