How do I troubleshoot the individual parts? The repair manual gives possibilities but I do not see information on how to test the possible malfunctioning components. I do not want to throw random parts at it. I would think there might be a diagnostics and trouble shooting flow chart out there.
I have tested the EGR gas temp sensor. It measures 0.28 megs cold and drops when warmed.
The EGR vacuum modulator checked out previously with a hand vacuum pump.
The VSV for ERG was previously replaced
The hoses are all good or have been replaced
? The EGR valve has some rust visible in the tubes. How do I properly test the EGR valve? When I put a hose on it and suck the engine stumbles. Engine off, if I suck, put my tongue over the hose, it holds vacuum. I can hear parts move inside.
My local dealer had made it plain that they do not want to work on this truck. My local private shops are not interested and/or not competent.
Any ideas?
Thanks,
Scot
I have tested the EGR gas temp sensor. It measures 0.28 megs cold and drops when warmed.
The EGR vacuum modulator checked out previously with a hand vacuum pump.
The VSV for ERG was previously replaced
The hoses are all good or have been replaced
? The EGR valve has some rust visible in the tubes. How do I properly test the EGR valve? When I put a hose on it and suck the engine stumbles. Engine off, if I suck, put my tongue over the hose, it holds vacuum. I can hear parts move inside.
My local dealer had made it plain that they do not want to work on this truck. My local private shops are not interested and/or not competent.
Any ideas?
Thanks,
Scot
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