TGPForums.com

MODIFICATIONS => Suspension/Wheels/Tires/Brakes => Topic started by: LukeZ34 on May 09, 2006, 06:13:39 PM

Title: PM III Pump Motor Relay
Post by: LukeZ34 on May 09, 2006, 06:13:39 PM
Is there any way to R&R the relay while the unit is still in the car?
I've got a spare unit here with what looks to be a good relay on it. Our Prior PM III continued to run today after turning the key off, but after smacking the top of the relay with the tip of a screwdriver it stopped.
Just curious if anyone has any secrets for getting the relay out without removing the whole damn unit?
Title: Re: PM III Pump Motor Relay
Post by: GangstGP on May 11, 2006, 04:50:56 PM
my new car has a new pmIII from Prior Reman and the relay is stuck on it too Im guessing. it never stops running when I hook up a battery to it. could have other issues too I guess. I will probably look into that and get back to you if I find out anything.
Title: Re: PM III Pump Motor Relay
Post by: LukeZ34 on May 25, 2006, 07:04:18 AM
I'll update this..

I pulled the relay off of the extra PM III I had laying around the garage. I opened it up and checked the contacts and they looked practically new!
So I found that the best way to remove the relay w/ the unit still in the car was to jack the car up, and remove it from the bottom.
I used to large screw drivers to release the relay from the PMIII unit from the top, which allowed it to fall down towards the bottom of the car. From underneith I used a small screw driver to pry the harness clip, and then pulled the harness out of the old relay. Plugged the new(er) relay in to the harness, and then snapped it back in to the clip on the PMIII unit. Works perfectly now!
I inspected the old relay and the contacts were filthy, worn and burnt; obviously the reason that it was beginning to stick.
Title: Re: PM III Pump Motor Relay
Post by: TGPilot on May 25, 2006, 09:38:58 AM
Can you go do it again and take pictures this time with a write-up???













:smilielol: oh I kill myself sometimes! The PMIII is not a fun unit at all. Makes me wonder if the people building them back in the day said....wow we can put this here and there will be literally NO WAY they will get it out in the car!! :laugh:
Title: Re: PM III Pump Motor Relay
Post by: GangstGP on May 27, 2006, 12:32:55 PM
there is no tellin wtf theys thinkin half the time :icon_rolleyes: x-over...turbo blankets...no washers on the dogbones...airbox in front of the rad...making the ac condenser too big...exhaust ports on the heads too small...grounding to a painted surface....


Title: Re: PM III Pump Motor Relay
Post by: Prospeeder on May 27, 2006, 12:44:23 PM
Yea they do ground to painted surfaces, but they use these washers with curved spikes that dig into the metal as you tighten it. I dont see a problem with the blanket. Why does it matter if it has no washers on the dogbones...the bolts are shoulderd, and they dont have any side to side force just forwards and back so its gonna gonna rip them out. The Airbox was a pretty stupid thing, no turbo sound, restrictive as HELL  and what not. And GM knew about the xover after many cars went back in warrenty time but it was cheaper just to leave it be, seeing as it was a limited run car why spend a bunch of money redeisning a part for just a few cars?
Title: Re: PM III Pump Motor Relay
Post by: GangstGP on May 27, 2006, 03:37:17 PM
lets see, $40,000 X (3775+3550+1000) spent on cars that NONE of them have a good x-over, and everyones turbo will crack? thats gonna go over well (we better put a sticker on the visor lol).  and yea the rubber squishes out the sides of the dogbones without the washers every time you excelerate. and it will crack the rubber. I aint trying to argue or nothin cause we could get into another heated one about the blankets too, so if you cant figure out the obvious about that one....its been discussed already elsewhere. I was enjoying this thread too much about the PMIII!
Title: Re: PM III Pump Motor Relay
Post by: Prospeeder on May 27, 2006, 03:55:15 PM
i just cant stand how the pedal feels with the PM3
Title: Re: PM III Pump Motor Relay
Post by: GutlessSupreme on May 29, 2006, 10:12:25 PM
I kinda liked it. It was boingy lol. Sure as hell stopped the car better than the vacumm brakes in my Cutlass, and that was with the pump running all the time.
Title: Re: PM III Pump Motor Relay
Post by: mfewtrail on May 29, 2006, 11:20:01 PM
Quote from: GutlessSupreme on May 29, 2006, 10:12:25 PM
I kinda liked it. It was boingy lol. Sure as hell stopped the car better than the vacumm brakes in my Cutlass, and that was with the pump running all the time.

I sorta like it too. I drove my TGP for the first time in about a month and had to get used to braking feel again. :laugh:
Title: Re: PM III Pump Motor Relay
Post by: twinturbosedan on June 01, 2006, 11:06:20 AM
Quote from: GutlessSupreme on May 29, 2006, 10:12:25 PM
I kinda liked it. It was boingy lol.

:laugh: that's actually a good description of pedal feel!  mine was like that too.