96 Suburban runing rich *UPDATE, PLEASE HELP*

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96 Suburban runing rich UPDATE, PLEASE HELP

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96 Suburban runing rich *UPDATE, PLEASE HELP* - 2/8/2008 6:58:33 PM

trfollis

Posts: 2
Joined: 1/25/2008
Status: offline

I recently posted about my 1996 Suburban runing rich and i took the advice of those who posted and i thank you all for the help. I believe i nearly have the issue completely resolved. My problem stands now that i have 3 of the O2 sensors unpluged and the engine runs very well most of the time and with decent gas mileage but sometimes as im driving, all of a suden, the engine begins to misfire badly in the number 8 cylinder and i begin to smell the familular smell of the motor runing rich and my gas mileage goes down to only a few miles per gallon. Sometimes it runs like this for a few minutes and sometimes for a few days, and when it begins to run normaly, it does it instantly, like someone fliped a switch and it is runing perfect again. It goes back and forth from runing good to runing bad and i am looking for all help to try to trace down the problem to avoid spending hundreds i cant afford right now to take it to the shop. All help is greatly appreciated. Thanks, Tyler

< Message edited by trfollis -- 2/9/2008 5:13:03 AM >

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Tyler R. Follis

Post #: 1

RE: 96 Suburban runing rich *UPDATE, PLEASE HELP* - 2/11/2008 9:00:56 AM

rutler101

Posts: 38
Joined: 1/30/2008
Status: offline

is this motor a vortec motor or is it tbi??

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go chevy big block i dont need that cute little 350!

(in reply to trfollis)

Post #: 2

RE: 96 Suburban runing rich *UPDATE, PLEASE HELP* - 2/11/2008 9:59:31 AM

dleonard2844

Posts: 95
Joined: 11/29/2007
Status: offline

should be a vortec, so it sounds like you have an injecter playing games with you.

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'94 Stepside- snatch ropes are for girls

3 in. lift, 33 in. tires, magnaflow exhaust, topdeck bed cover, onboard air (with compressor!) and a Jesus whistle hanging from the rearview!

(in reply to rutler101)

Post #: 3

RE: 96 Suburban runing rich *UPDATE, PLEASE HELP* - 2/12/2008 6:51:09 AM

rutler101

Posts: 38
Joined: 1/30/2008
Status: offline

gm injectors after tbi are junk! sorry that doesnt help just had to say it.

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go chevy big block i dont need that cute little 350!

(in reply to dleonard2844)

Post #: 4