Air Pump Eliminator Kit
New User
Joined: May 2011
Posts: 1
Likes: 0
I have a '96 E250 4.9L w/ no a/c. How do I find out what size belt I will need to bypass the smog pump? Mine is VERY NOISY and I assume it will lock up at any minute.
Elder User
Joined: Jul 2012
Posts: 769
Likes: 0
From: Poplar Bluff, MO
I took the smog off last night and just used a shorter belt and it worked fine, just goto orileys or autozone and ask for a 91 1/4 in belt it works fine.. Any questions just ask I took it all off successfully
Elder User
Joined: Feb 2013
Posts: 856
Likes: 3
From: Livonia, MI
Just for the record, you all realize removing/deleting these items is against the law, correct? I'm far from a liberal, left-wing, nut job tree hugger - but these things are in the truck for a reason.
New User
Joined: Apr 2016
Posts: 22
Likes: 0
I also upsized the belt and rerouted it on my 302 and it worked perfectly
It took me a bit to get the up sized belt on but it works perfect.
New User
Joined: Apr 2016
Posts: 22
Likes: 0
Depends
I have no cat or air pump but I don't get my emissions checked because it's an 89 and I live in nh. Plus I have a guy that stickers my truck as long as it has lights 😂
Junior User
Joined: Jul 2016
Posts: 93
Likes: 0
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New User
Joined: Apr 2016
Posts: 22
Likes: 0
Hmm
The only reason the air pump is on your truck is for the air to be super heated in the catalytic converter. Ifor it's not working correctly or if it isn't pumping air, you may fail inspection on a sniffer but you might get away with it as long as the o2 sensors don't get pissy
FTE Chapter Leader
Joined: May 2006
Posts: 11,273
Likes: 100
From: North Dakota
The air pump just pumps air into the exhaust. That's it. Nothing special about it. Basically it dilutes the exhaust gases with fresh air making the "sniffer" think the engine is putting out less pollutants than it really is.
New User
Joined: Nov 2019
Posts: 5
Likes: 0
i have a 1990 with the 5.8. my pump froze up and in addition alot of the emission equipment was gone or bypassed before i bought it. i removed the three smog pump pulley bolts and removed the pulley. i found somewhere on this site the belt number, tried it and it worked perfect. the belt number is 6PK2285. im sure that belt number crosses over into other numbers.
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