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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 5425
Experience:  Owner at DJ Wilson
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Dt 530 in a 4400 ih. loses fuel and won't start when it sits

Customer Question

dt 530 in a 4400 ih. loses fuel and won't start when it sits for a few days. give it a shot of ether and it fires right off. i have been told fuel pressure regulator is bad causing fuel to leak back to the tank.
JA: We'll do all we can to help. Is there anything else the Heavy Truck Mechanic should be aware of?
Customer: truck seems to run well and has good power. on occasion it seems as if it has a slight stutter at about 15-1600 rpms when under full load in the top 2 or 3 gears. if you shift at too low of an rpm. if i let it wind out and keep the the rpms up above that you never notice it.
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Daniel Wilson replied 1 year ago.

Hi my name is***** year is this truck and also what are you getting for fault codes?

Customer: replied 1 year ago.
2004. No fault codes or check engine lights.
Expert:  Daniel Wilson replied 1 year ago.

Thanks for the update. Check the fuel line between the tank and pump for restrictions or leaks causing a starvation of fuel by installing a clear hose inline to watch for bubbles indicating air in the system or fuel bleading back to tank. Install a mechanical gauge to watch for a drop in fuel pressure as well. Low fuel pressure can be caused by leaks, restrictions, faulty transfer pump or pressure regulator. Let me know