Week 8

This week I got a chance to remove and install a set of 10 lug dual wheels from one of the buses

This is a 2009 Duramax engine. The bus about 100k on it and had a code for a faulty egr valve so I got to replace the valve. This job would have probably been a lot easier if this was a pickup truck but since the engine is in a van style bus the engine is crammed in there. The egr valve is located right next to the turbo on the right side of the engine. To get the egr valve out the air intake had to be removed along with the serpentine belt and the alternator.

On the left is the air intake and that is the passage way that is coming from the egr valve. It had alot of soot deposits on it from the recirculated exhaust. Then on the right is the air intake tube all cleaned up.

This is the egr valve, the passage ways were all filled with soot. These new diesel engines have really clean emissions but it causes the inside of the engine to be dirtier.

There wasn't much room at the back of the engine either. Some of the exhaust had to be taken apart to remove the egr cooler so that it could be cleaned because its was also half way plugged up with soot.

This week =32, total =236