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99 blazer poor mpg

Old Jul 16, 2014 | 01:14 PM
  #11  
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Originally Posted by xpsychox
Again, haven't touched the plugs.. The one I took out it kittelytook. Me 45 to get back in.. It was normal wear n tear no excess black it looked good (was on driver side closet to firewall).
Would be smart to replace them if they are old and worn. Did you check the gap of the plug? What was the condition of the MAF?
 
Old Jul 16, 2014 | 02:43 PM
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Originally Posted by lavrishevo
Would be smart to replace them if they are old and worn. Did you check the gap of the plug? What was the condition of the MAF?
Correct...but as I stated I haven't had the time to **** with it.. I was rained out that day..and haven't checked the MAF.. Wife is at work no time..
 
Old Jul 20, 2014 | 07:42 PM
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OK... Just changed oil.. And cleaned the MAF the outside was pretty corroded.. Still haven't done plugs yet.. Off Wednesday and Thursday.. Housing to get it done then.. I also did a good cleaning to the air filter saw a bit of dust come off too. (Used just plain air). Am I missing anything else? Oh, I plan on ordering a new o2 sensor and get that installed (yes, I know disconnect battery after). Thanks!!
 
Old Jul 27, 2014 | 07:09 PM
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Originally Posted by xpsychox
OK... Just changed oil.. And cleaned the MAF the outside was pretty corroded.. Still haven't done plugs yet.. Off Wednesday and Thursday.. Housing to get it done then.. I also did a good cleaning to the air filter saw a bit of dust come off too. (Used just plain air). Am I missing anything else? Oh, I plan on ordering a new o2 sensor and get that installed (yes, I know disconnect battery after). Thanks!!
Looks like it may have been dragging breaks got rears turned down and replaced from rotors and pads..guess its always the easier and simplest problem..lol
 
Old Jul 27, 2014 | 09:11 PM
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Air filter wont do a thing as the ECU fixes F/A. Besides O2, coolant temp sensor and MAF are the big players. How's TCC doing?
 
Old Jul 28, 2014 | 08:22 AM
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Originally Posted by LeWhite
Air filter wont do a thing as the ECU fixes F/A. Besides O2, coolant temp sensor and MAF are the big players. How's TCC doing?
I flushed the radiator it was pretty nasty and I don't know what the tcc is.

Edit: I googled it as far as I know it's fine not having issues shifting and check engine light is on but its only from the o2 sensor.
 

Last edited by xpsychox; Jul 28, 2014 at 08:38 AM.
Old Jul 28, 2014 | 12:22 PM
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it will always run rich open loop without O2 sensor therefore bad gas mileage
 
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