How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Wayne Your Own Question
Wayne, Journeyman
Category: Medium and Heavy Trucks
Satisfied Customers: 9533
Experience:  worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling
Type Your Medium and Heavy Trucks Question Here...
Wayne is online now
A new question is answered every 9 seconds

1991 Army surplus BMY tractor 350 HP Cummins. It idles fine,

Customer Question

1991 Army surplus BMY tractor 350 HP Cummins.
It idles fine, then under acceleration the RPM falls to 800 on the slightest incline. Can get up to speed on flat ground. Any suggestions?
Urgent An employee is stuck in Calif trying to make it back to Texas.
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Wayne replied 1 year ago.

Hi I'm Wayne

I will help you with this

sounds like no turbo boost,

have him check all the duct work, and clamps for

loose or broken

If this Helped you please Rate My Answer 3 stars or more

If you need more info

Use the request Button, not a Poor/Bad Rating

Thank You


Customer: replied 1 year ago.
I don't know yet if that is it because he is on road from Calif to Texas. He has convinced himself that Army trucks are supposed to crawl up hills. He's never been in the Army lol.
Expert:  Wayne replied 1 year ago.


I was, and they are no ball of fire

keep me posted

Customer: replied 1 year ago.
Could I have my partner, who is driving the truck, call instead of me. He knows mechanics, while I am still struggling with remembering which side by gas tank is on. lol
Expert:  Wayne replied 1 year ago.


Phone call is $58.00 extra on top of the question value, JA rules

Related Medium and Heavy Trucks Questions