EGR Valve and Code P0300 and P0401
#1
EGR Valve and Code P0300 and P0401
1995 Blazer 4.3 stock truck.
I cleaned the old EGR valve and also tried cleaning the carbon in the intake. Got the same codes again so I bought a new EGR Valve 2 weeks ago. Now the truck is running terrible agian adn the same codes are set again. Any help? I can still see some carbon build up in the intake, hwo can I get rid of it? What else may cause these codes?
While I am trying to figure this out the heater not started leaking. Never ends
I cleaned the old EGR valve and also tried cleaning the carbon in the intake. Got the same codes again so I bought a new EGR Valve 2 weeks ago. Now the truck is running terrible agian adn the same codes are set again. Any help? I can still see some carbon build up in the intake, hwo can I get rid of it? What else may cause these codes?
While I am trying to figure this out the heater not started leaking. Never ends
#2
When you say carbon in the intake, I assume you mean in the runner to the EGR, right?
You may have to pull the lower and clean everything back to the exhaust crossover port
You may have to pull the lower and clean everything back to the exhaust crossover port
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