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Alex Olsen
Alex Olsen,
Category: Medium and Heavy Trucks
Satisfied Customers: 41
Experience:  Lead technican at Astleford international trucks
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I have 2008 GMC C8500 with 7.8L Isuzu diesel ( in line 6) It

Customer Question

Hi I have 2008 GMC C8500 with 7.8L Isuzu diesel ( in line 6) It runs hot at times and smokes ( blue) at times. There are times you can drive it 50 miles without a problem, but it does it more after a cold start and within the first 5 miles of driving. It does not loose coolant.
Submitted: 7 days ago.
Category: Medium and Heavy Trucks
Expert:  Alex Olsen replied 7 days ago.

hi im Alex, does it run rough? have you had any injectors replaced recently?

Customer: replied 7 days ago.
Hi Alex no it does not run rough but it does chug a little when it smokes , the injectors are original, it has about 135,000 miles on it. The check engine light is not on and no codes in it.
Expert:  Alex Olsen replied 7 days ago.

Ok I would check the exhaust brake

Customer: replied 6 days ago.
Ok I will let you know how it goes. Thank you for your help.
Expert:  Alex Olsen replied 5 days ago.

No problem those like to stick

Expert:  Alex Olsen replied 4 days ago.

need any more help with this?

Expert:  Alex Olsen replied 4 days ago.

I am an Independent contractor and do not receive any compensation untill you rate my service, if you have any follow-up questions after rating they will be free of charge.thanks

Expert:  Alex Olsen replied 1 day ago.

i would like to get this closed out do you need any more help on this? i f not please rate me and i will close it out, if you do still need help rate me and then comment and i will keep it open for further assistance, i will give you a second question free of charge with a rating of 5 stars. thank you

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