SN95 Smog Pump Drama

Mustangbelle306 · 02-23-2002, 08:54 PM

Well how many people here can say that their Mustang broke down IN the shop??? Hum...that many huh?

I had the Mustang at a muffler shop finishing the new pipes, and I get a call this morning (car was supposed to be done Thursday) and the dude is telling me that SOMEHOW, the 1 year old water pump locked up...*sigh* So...its been a week, and body count amounts to 1 new 315 tire, new pipes, and now a new pump...

So after AAA tows it to my machine shop, we find out its NOT the water pump *good* its the smog pump *bad* because for those of you that don't know, the 94-95ers cannot bypass it with a shorter belt, and a new one retails for about $110.

My question is, have any SN95 5.0ers gutted theirs? Know where to find a cheap one?

Unit 5302 · 02-24-2002, 12:18 AM

Ah, the locked up smog pump. I've seen it about 1/2 dozen times after a car sits for a prolonged period of time.

Pull the output hose off it, spray some WD-40/Liquid Wrench, whatever you choose in there. You may have to give the shaft a few straight on moderate taps with a hammer after a few hours if the penetrating oil itself doesn't free it up. I've been successful with all the ones I've tried to get unstuck.

Mustangbelle306 · 02-24-2002, 04:09 PM

Well the car hasn't been sitting very long at all...maybe 2 days

I'll give it a shot..thanks for the advice!

Unit 5302 · 02-24-2002, 05:25 PM

Good luck. I've also seen where debris has jammed it. That was my fault. I had this bright idea to wind up the air pump while it wasn't on the car. Sooooo I turned on the bench grinder, put the pulley to the steel brush and let her wind. It bogged the grinder down a little, but it eventually made it back up to full speed. It was about 2:1, so I figured the air pump was screamin around 6000rpm anyway. Great right? Yeah, till a loose wire flew into it. That jammed up the works pretty good.

Otherwise I haven't seen them jam very often after only a couple days. I think 1 I had did that once, but I can't remember? I was probably messing with it, lol.

Green9550 · 02-26-2002, 06:07 PM

Uh, maybe I'm not too bright, but why can't you bypass the smog pump on a 94-95 mustang? I was thinking about doing that because my heads don't have holes drilled for the smog crap. So, let me in on the little secret, please. Thanks.

-Billy

joe4speed · 02-27-2002, 01:02 AM

I got a cheesy one from discount auto parts when mine seized for 60.00!
Can't find one any cheaper?

02-23-2002, 08:54 PM	#1
Mustangbelle306 Yay for Chickys Join Date: Feb 2001 Posts: 1,532	SN95 Smog Pump Drama Well how many people here can say that their Mustang broke down IN the shop??? Hum...that many huh? I had the Mustang at a muffler shop finishing the new pipes, and I get a call this morning (car was supposed to be done Thursday) and the dude is telling me that SOMEHOW, the 1 year old water pump locked up...sigh So...its been a week, and body count amounts to 1 new 315 tire, new pipes, and now a new pump... So after AAA tows it to my machine shop, we find out its NOT the water pump good its the smog pump bad because for those of you that don't know, the 94-95ers cannot bypass it with a shorter belt, and a new one retails for about $110. My question is, have any SN95 5.0ers gutted theirs? Know where to find a cheap one?

02-26-2002, 06:07 PM	#5
Green9550 Resident Redneck Join Date: Jan 2002 Location: Cecil County, MD Posts: 165	Uh, maybe I'm not too bright, but why can't you bypass the smog pump on a 94-95 mustang? I was thinking about doing that because my heads don't have holes drilled for the smog crap. So, let me in on the little secret, please. Thanks. -Billy __________________ 95' GT: 306, XL Ross Pistons, Ultra Lite H-beam Rods, Forged Scat Crank, 28oz Romac, 28oz JW flexplate, FTI ported RPM II intake, FTI ported AFR 165's, FTI custom cam, 75mm BBK Throttle body, 80mm Pro-M, 4800 PI stall, PA Super Comp AODE, Strange 33 spline race axles, Strange ultra lite spool, Motive lite 4.30's, Strange rear race brakes, Mega bite seniors, double adjustable uppers w/spherical bushings, Racecraft anti-roll bar, LPW rear end girdle, Metco d/s loop, A9L conversion, AFM PMS

02-27-2002, 01:02 AM	#6
joe4speed He said Member...heh, heh Join Date: Sep 1999 Location: Jupiter, Florida U.S.A. Posts: 3,718	I got a cheesy one from discount auto parts when mine seized for 60.00! Can't find one any cheaper? __________________ *Joe!* 1988 GT, 13.58@101mph Check out my listing! Click here! Or my website:www.joe4speed.com

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02-24-2002, 12:18 AM	#2
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Ah, the locked up smog pump. I've seen it about 1/2 dozen times after a car sits for a prolonged period of time. Pull the output hose off it, spray some WD-40/Liquid Wrench, whatever you choose in there. You may have to give the shaft a few straight on moderate taps with a hammer after a few hours if the penetrating oil itself doesn't free it up. I've been successful with all the ones I've tried to get unstuck.

02-24-2002, 04:09 PM	#3
Mustangbelle306 Yay for Chickys Join Date: Feb 2001 Posts: 1,532	Well the car hasn't been sitting very long at all...maybe 2 days I'll give it a shot..thanks for the advice!

02-24-2002, 05:25 PM	#4
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Good luck. I've also seen where debris has jammed it. That was my fault. I had this bright idea to wind up the air pump while it wasn't on the car. Sooooo I turned on the bench grinder, put the pulley to the steel brush and let her wind. It bogged the grinder down a little, but it eventually made it back up to full speed. It was about 2:1, so I figured the air pump was screamin around 6000rpm anyway. Great right? Yeah, till a loose wire flew into it. That jammed up the works pretty good. Otherwise I haven't seen them jam very often after only a couple days. I think 1 I had did that once, but I can't remember? I was probably messing with it, lol.