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It needs heat and air flow to burn out the soot build up. It Will ️thank you for it.

What we typically see when you unthread the nozzle is a heavy build up of soot. That usually means the injector has gone bad. If you had a scanner, I wo look at the ohms reading on on NOx 1 & 2. It should be around 2. Ohms. If it's 6 ohms the sensor is bad. We've been paying around $275 for a #9...

So we have finally found the cause of our surge issue. The cam sensor. It wouldn't set a code for it, nothing indicated that being the source. We have had many issues with connectors on different components that we just planned on doing everything in a systematic manor. We built new harness's...

The p/u use a different filter mount with a hand pump. The earlier vans ( 07-09) turned on the electric fuel pump when it saw a rpm signal. 2010 & newer come on with the key and are timed out if they don't see the rpm signal. We use NAPA Gold filters which are made by WIX. But since this is the...

The Truck is beyond warranty at 220k miles. The Air and Fuel filters are replaced every 20k miles on a pm schedule. When we first started having a problem the first thing we did was check for any codes using our Tech 2 scan tool. No codes stored. FPR is steady with demand and actual. EGR is...

HP fuel pump, fuel rails, 8 fuel injectors & fuel lines, delivery pump and fuel filter.

Been having trouble with a 2011 Savana with an engine surge at light throttle pressure from 1,200-1,600rpm. You can push through it by adding throttle. The dealer said it needed the the fuel system replaced. That was done. Only to have the problem still there. We replaced the crank sensor...

Ok, will try and get that soon, thank you.

Truck has been on the road now with almost a 1000 miles put on it and almost 100 hours of run time. We were able to duplicate the condition only once. When it was actively hunting the FPR was reasonably stable, only fluctuating by no more than 100 psi. If it was the FPR , I would expect to see...

New issue with our fleet of Duramax. We now have a truck that has a hunting problem at idle in gear. We have had several with fuel pump failures, lots of EGR valve issues due to the high idle time. Does anyone have any experience with this condition?