What causes NOx in combustion?
Prompt NOx – Prompt NOx is formed from molecular nitrogen in the air combining with fuel in fuel-rich conditions which exist, to some extent, in all combustion. This nitrogen then oxidizes along with the fuel and becomes NOx during combustion, just like fuel NOx.
Why does my Jeep 4.0L have high NOx?
While the columns did deal with a driveability problem on a Jeep 4.0L, the problem was entirely different from what your customer is experiencing. Second, a lack of backpressure caused by the aftermarket exhaust system should not cause an increase in NOX, at least not on a vehicle that’s capable of adjusting its own air/fuel ratio.
What causes high No ( Nox ) in the air?
What Causes High NO (NOx)? Nitrogen Oxide or NO is created when an engine’s combustion chamber temperature reaches over 2500F. Vehicle manufacturers have designed several systems, which when working properly, lower nitric oxide emissions.
What makes a Jeep Wrangler fail a smog test?
NOx was the last addition to the list of monitored exhaust gases. Misconceptions regarding the conditions that promote its formation still exist. I am working on a 1995 Jeep Wrangler with a 4.0L engine that has failed to pass a smog test due to high NOX.
What causes death wobble on a Jeep Wrangler?
Worn wheel bearings may contribute to death wobble as well and are very easy to test. Jack up one of your Jeep’s front wheels and grasp the tire at the 12- and 6-o’clock position, then wiggle the tire. If you feel movement, then you most likely have a worn wheel bearing. Check the other side as well.
While the columns did deal with a driveability problem on a Jeep 4.0L, the problem was entirely different from what your customer is experiencing. Second, a lack of backpressure caused by the aftermarket exhaust system should not cause an increase in NOX, at least not on a vehicle that’s capable of adjusting its own air/fuel ratio.
What causes a Jeep Wrangler to wobble on the road?
Granted, an unbalanced wheel or an improperly worn tire being the cause of your Wrangler’s death wobble is less probable, but it’s certainly not impossible. Hop onto any of the off-roading forums and you’ll find a case of someone noticing missing wheel weights, getting their tires re-balanced, and their Jeep’s shakes disappearing.
NOx was the last addition to the list of monitored exhaust gases. Misconceptions regarding the conditions that promote its formation still exist. I am working on a 1995 Jeep Wrangler with a 4.0L engine that has failed to pass a smog test due to high NOX.
What causes high NOx in a fuel mixture?
1. Lean Fuel Mixture – Lean fuel mixtures cause high NOx. A lean fuel mixture exists when less fuel then required is delivered to the combustion chambers or when more air then necessary is added to the fuel. In either case the lack of gasoline needed to cool the combustion chambers down is not present.