91 cv smog pump issue

6 posts 2 contributors 1,312 views

Member since Jun 2014
10 posts
Alpena, MI, USA
2 vehicles in the registry

Jun 17, 2014 at 12:40 PM

I replaced the complete exhaust system less the cats. Now there\\\\\\'s no where for the smog pump air to go. Should I just remove the smog pump or somehow re-route the pipes that previously went to the cats?

mike

hondaclf

Member since Feb 2009
244 posts
Baldwin, NY, USA
4 vehicles in the registry

Jun 17, 2014 at 2:58 PM

Remove the pump, that's generally the way to go. Unless you really want emissions parts on the car

hondaclf

Member since Feb 2009
244 posts
Baldwin, NY, USA
4 vehicles in the registry

Jun 17, 2014 at 2:59 PM

If you have functioning AC, you can use a smaller belt and just take out the smog pump.
If you don't have AC then just take the belt off and remove the pump.
It makes an annoying noise when it's pumping to nowhere.

mpbarberOP

Member since Jun 2014
10 posts
Alpena, MI, USA
2 vehicles in the registry

Jun 19, 2014 at 5:54 AM

Thanks hondaclf.... Do you know where I could find a diagram that would identify all the lines and hoses that are a part of the AP system so I can get rid of those as well?

mike

hondaclf

Member since Feb 2009
244 posts
Baldwin, NY, USA
4 vehicles in the registry

Jun 20, 2014 at 3:09 PM

I'm trying to find some info on grandmarq.net(the go to site for older cars like yours)
This spring I broke a smog pipe and an exhaust shop just welded it up for me, I still have the pump just sitting in there.

hondaclf

Member since Feb 2009
244 posts
Baldwin, NY, USA
4 vehicles in the registry

Jun 20, 2014 at 3:21 PM

Basically you have to plug the pipes going into the exhaust in font of the cats and plug the openings in the rear of the heads.

Just take out the vacuum lines and remove the pump if you have functioning AC then you'll need a shorter belt()
http://www.grandmarq.net/vb/showthread.php?46952-1988-Mercury-Grand-Marquis-Smog-Pump-Delete&highlight=smog+pump+removal

http://www.grandmarq.net/vb/showthread.php?47563-Belt-Sizes-for-3G-alternator-swap-and-Smog-Delete
From that thread

Quote:

Second, for all you A/C lovers is 560k6. This can be found if you ask the parts person look up a 1997 Dodge Caravan with a 2.4 engine with air conditioning. Roughly about 19 bucks, more or less depending on where you normally shop...

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