wtesta Posted May 29, 2011 Share Posted May 29, 2011 my truck has a air restriction activation message and I can't figure it out can anyone tell me what that means.A Brand new Air Filter was installed yesterday that is when that message popped. Quote Link to comment https://www.bigmacktrucks.com/topic/19236-2008-gu713/ Share on other sites More sharing options...
smorse54 Posted May 29, 2011 Share Posted May 29, 2011 Hi,the filter didn't accidently get put in backwords ,did it? I'm not familiar with Granites, but have seen this done on R models a couple of times. Good luck, Steve Quote Link to comment https://www.bigmacktrucks.com/topic/19236-2008-gu713/#findComment-78618 Share on other sites More sharing options...
wtesta Posted May 29, 2011 Author Share Posted May 29, 2011 Hi,the filter didn't accidently get put in backwords ,did it? I'm not familiar with Granites, but have seen this done on R models a couple of times. Good luck, Stevethe air filter was inserted in the correct way and i have no idea how this message popped up i am just guessing that this could be a issue with these new engines I think the truck has the MP8 engine and that this is the 8th issue so far and the truck is still under the extended warrenty. Quote Link to comment https://www.bigmacktrucks.com/topic/19236-2008-gu713/#findComment-78629 Share on other sites More sharing options...
Mackpro Posted June 1, 2011 Share Posted June 1, 2011 We have seen this problem and its usually a loose wire connector not pushed all the way in at the large firewall/bulkhead connector. Its a pain to find. I'll see if I can get a pic Quote Link to comment https://www.bigmacktrucks.com/topic/19236-2008-gu713/#findComment-78782 Share on other sites More sharing options...
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