I have a 07 vnl64t. Periodically I get a fault code mid 128 Sid 281 fmi 7. I can clear it and it goes away for a while. It just says mechanical fault. I have had issues with codes before so I was wondering if there is an online resource for Volvo codes if I need to look up any in the future. I dread going to the dealer for anything unless it's absolutely necessary.
volvo fault codes
Discussion in 'Volvo Forum' started by Chris ITC740, Oct 21, 2013.
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Here is the information on your code. Hope it helps a bit.
Condition for fault code:
- The EGR temperature after the cooler has been reduced too fast during some seconds. The reason to the fast reduction of temperature is a reversed flow of charge air in the EGR system.
- Faulty reed valves.
- Faulty EGR temperature sensor.
- Fault code set.
- Yellow lamp requested.
- Yellow lamp lights up.
QUALITYTRUCK and Chris ITC740 Thank this. -
what is a reed valve
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like a check valve for exaust. lets it flow only in one direction
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Is the egr reed valve difficult to change? Where is it located and is it expensive? Thanks.
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This happened to me a while ago. After a few months the code wouldn't clear. Had to go for new egrs AGAIN! Additionally they did EVER gasket from the exhaust manifold back to the muffler. Cost me $4800. Back in February.
Hopefully you have better luck then me. -
Expensive. I am hoping it will just be a lose wire bad sensor or clogged tube. I will play with it this wk end. You see until yesterday she was doing 6.3-7mpg but now she is down to the 5mpg after 600mls 40k lbs 70mph straight through run from IA to ND..
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No lose wire or a bad sensor but find out leaking egr tube and replaced I don't have no idea how much that May had to do something with fuel mpg drop.
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