92 ford f350 diesel 7.3 and it never wants to turn over takes several tries,why is this?

Question

i have to crank it many times and when it does fire black smoke comes out alot,enough to stain the ground black. But after that it fires fine all day,only in the mornings it wont fire no matter what the temperature

Answer 1

Several folks have zeroed in on the glow plugs. They're on the right track, but my bet is that it's the glowplug relay, not the glowplugs themselves. You only need one or two working for the engine to fire fairly quickly. If you have to grind on endlessley to get it to fire none of them are getting any current. They could all be bad, but that's not likely.

Answer 2

Finally a serious answer. I would start with draining the fuel at the fuel filter located under the right side of the truck along the frame rail. There is a valve to drain water from the fuel. If any is present then replace the filter and purge the air from the lines by running the truck and opening the valve slightly. If your truck is a 2003 or later 6.0, make sure that there are no stored computer trouble codes. Many auto parts stores will let you borrow the tool to read these codes. Take a good visual inspection of the engine especially the air inlet to the turbo. Make sure everything is tight and that no outside air is getting in. As to the idiots making stupid comments about Ford Trucks, you can arrange to have your trucks doors blown off any time you want by my F350 4x4. I was dyno'd at 650 HP and 730 ft lbs of torque. I have 50,000 miles on this modified truck with no mechanical failures ever. My last 1/4 mile run was 13.4 seconds and 113.23 mph. Thank you Banks Engineering!

Answer 3

Because a diesel doesn't use spark plugs. You diesel is cold in the morning (diesels use hot air to fire or ignite your fuel). If you have an engine block heater this would help greatly.

Answer 4

check your battery connections, probably has two batteries.Usually the ground is the problem.You may have a loose connection at the starter. Hook a volt meter to your battery and see what the volts drop to when you crank it.It should only drop a couple volts at the most. also, check where your ground cable bolts to the frame or engine.

Answer 5

I know very little about diesels but my suggestion would be check the glows plugs? Sorry i can help much more.

Answer 6

it sounds like your glow plugs could need replacing
if they have some age on them they become weak and cause poor starting

Answer 7

A cylinder is filling with fuel, you have a bad injector

Answer 8

Cause it's old, get a newer pickup