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Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 8856
Experience:  I am ASE Master Truck Certified.
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3126 Cat the truck lost brakes at the off ramp had to use

Customer Question

3126 Cat the truck lost brakes at the off ramp had to use tran to stop the vehicle came to a stop and stalled and now wont start took High perssure fuel pump off to see if the pump is bad but it checked out I think I over Revved it
Submitted: 2 years ago.
Category: Medium and Heavy Trucks
Expert:  Cat Man replied 2 years ago.
Does the engine smoke when you are cranking it? Or sound like it's trying to start?
Customer: replied 2 years ago.
Customer: replied 2 years ago.
it does not even fire if i use ether
Customer: replied 2 years ago.
that why I thought pump was bad
Expert:  Cat Man replied 2 years ago.
I see. So it will not even run on ether?
Or it fires on either but just does not stay running?
Customer: replied 2 years ago.
no it wont fire on either
Expert:  Cat Man replied 2 years ago.
I see.
If that's the case I suspect there is no compression in the cylinders. Most likely bent valves from an overspeed. I have seen this before. All ether needs is compression. When an engine will not run on ether. The engine does not have compression. I am sorry. I wish I had better news.
Please reply back if you need more help or have more questions. I am happy to assist.
Customer: replied 2 years ago.
update put engine back together and LOL 12 bent Push rods all Valves OK NO smoke replaced 12 push rods and LOL back to towing and thanks fro the Info found and fixed in 12 hr thanks to you for helping Copper Valley Towing you helped me put my roll back /// back on the road
Expert:  Cat Man replied 2 years ago.
You are very welcome my friend. I am happy I could help. I'm glad you got it going. Good job.

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