Yesterday on the way back home the check engine light came on on our 2001 Chevy Impala with 102 K miles on it. Today I stopped in Advance Auto Parts and borrowed their code reader. No P codes came up,
but it did say:
Exhaust gas recirculation flow insufficient detected
Top reported fix 1 - cleaned exhaust gas recirculation (EGR) passages
freq reported fixes:
1 - replace exhaust gas recirculation (EGR) valve
2 - cleaned engine carbon
3 - cleaned exhaust gas recirculation (EGR) transfer tube
4 - clean intake manifold
5 - replace intake manifold
6 - cleaned throtle body
----------------------------------------------------------------------
I looked on youtube for "Chevy 3.4 EGR" and there are videos showing the passageway that is part of the intake manifold that goes from the EGR valve to the intake port, and it shows one that was completely clogged up. This is probably what is going on with our Impala.
I am going to be very busy for the next four weeks then I will have a couple of weeks when I will not be busy. Do any of you see any problems in putting off fixing this exhaust gas flow problem for four weeks and continuing to use the car every day?
The engine runs fine, and I had it inspected last month so there is currently no problem in having the check engine light on for several weeks. I think that if the EGR valve had failed open that it might be something that requires immediate attention. But according to what the code reader displayed there is an insufficient flow of exhaust gas, so basically it failed in the not supplying exhaust gas mode.
So what do you say, does anyone see any possibility of causing engine damage by driving it the way it is for four weeks, about 100 miles per week?
but it did say:
Exhaust gas recirculation flow insufficient detected
Top reported fix 1 - cleaned exhaust gas recirculation (EGR) passages
freq reported fixes:
1 - replace exhaust gas recirculation (EGR) valve
2 - cleaned engine carbon
3 - cleaned exhaust gas recirculation (EGR) transfer tube
4 - clean intake manifold
5 - replace intake manifold
6 - cleaned throtle body
----------------------------------------------------------------------
I looked on youtube for "Chevy 3.4 EGR" and there are videos showing the passageway that is part of the intake manifold that goes from the EGR valve to the intake port, and it shows one that was completely clogged up. This is probably what is going on with our Impala.
I am going to be very busy for the next four weeks then I will have a couple of weeks when I will not be busy. Do any of you see any problems in putting off fixing this exhaust gas flow problem for four weeks and continuing to use the car every day?
The engine runs fine, and I had it inspected last month so there is currently no problem in having the check engine light on for several weeks. I think that if the EGR valve had failed open that it might be something that requires immediate attention. But according to what the code reader displayed there is an insufficient flow of exhaust gas, so basically it failed in the not supplying exhaust gas mode.
So what do you say, does anyone see any possibility of causing engine damage by driving it the way it is for four weeks, about 100 miles per week?