Question about 2004 Chevrolet Avalanche
Truck has 60k miles on it. new spark plugs ,wires and air filter
Have auto zone code scan vechicle for free could have small EVAP leak.
Posted on Jan 24, 2013
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Posted on Jan 02, 2017
SOURCE: 1987 s10 pickup Service engine
Slow down, don't start tearing down the engine just yet. Error 74 is: P0074 Ambient Air Temperature Sensor Circuit Intermittent.
Posted on Nov 07, 2008
Testimonial: "Thank you very much I now can proceed with confidence."
SOURCE: 2002 Tahoe Dropping Cylinder
A tune up will not cure the lean code, in fact an engine miss gives a rich code from the unburned fuel. I would suggest u verify u have no vacuum leaks, also clean the inside of the MAF sensor if so equipped and replaced the bank two O2 sensor, that is the passenger side sensor before the catalytic converter. If u have the money replace both right and left sensors, it is better to do them in pairs.
Posted on Jan 15, 2009
Hi! You must be frustrated by now! your code is marking that the O2 sensor is bad in bank 1. Did you replace the O2 sensor that is located before the catalytic converter? The S10 has an O2 sensor specially made for that cat. its about 30$ That would explain for your blackened spark plugs; your pc on the car is asking for more fuel. GOOD LUCK!!
Posted on Apr 29, 2009
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