7 MPG city 8 highway!!

1721 Views 7 Replies 5 Participants Last post by  TRCM
I get 7.0 mpg city, 8.0-8.3 highway!! No matter how i drive( heavy foot on gas pedal or light foot) i am getting almost the same MPG!!!! Ive changed spark plugs! What other things should i check!?? EGR and Oxygen sensor could be the issue?? How can i know if the oxygen sensor needs changing if EGR needs changing?? Wouldnt o2 sensor work bad because EGR is bad?? Please help:( thanx
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sounds like you need to quit towing 20 ton loads :D
Rusty muffler bearing, sticky clutch belt, idk...

On a serious note...

Check wheel bearings for stickiness, injector cleaner, sticky brake calipers, MAF
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