7400 fuel supply problemhard starting
Posted 22 January 2012 - 06:24 PM
We purchased a used 7400 SFA International truck last year. It has a DT466 engine in it. If it sits more than a few days, it acts like it isn't getting fuel. It takes several tries of cranking for 30 or more seconds each time to get it to start. Sometimes it will act like it wants to run while cranking, but dies as soon as the starter is let off.
It seems like it is getting worse every time it sets for very long.
Is this a common problem, or is it going to be expensive?
Posted 22 January 2012 - 09:46 PM
1972 White Western Star motor home (built by me).
1961 English Ford Zephyr (MK II).
1956 John Deere 420C dozer with 6 way.
1954 Dodge Power Wagon.
1952 Cockshutt 30.
1950 TD9 dozer with 6 way Smith.
1942 UD18 power unit.
1950 UD16 power unit.
1945 TD6 crawler.
1938 McCormick-Deering W14(one of only 476 made).
yr ? 10-20 with 3 bottom plow (driveway ornament).
1983 Mercedes Benz 300D turbo diesel( 140,000 kms).
A few one cyl engines.
A few scrapped tractors.
Posted 03 March 2012 - 09:12 AM
However, if I plug the truck in overnight, it starts fairly well.
When it is not plugged in and about 70 degrees ambient, I have to crank it about 4 or 5 times at 30 second intervals to barely get it running, then it runs very sickly and slowly gets going up to normal idle speed. The intake heater works, because the voltmeter drops down about a volt while the "Wait To Start" light is on, then back up to normal battery voltage when it goes out.
I don't want to have a truck that is this start, but I'm also not wanting to spend big dollars chasing ghosts.
Any help is greatly appreciated.
Posted 06 March 2012 - 08:38 PM