My f350 93 deisel wont start.the wait to start light,water in fuel lights dont come on now it will crank but wont hit.put new glow plugs in last spring.
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When the engine stops, the power steering stops because the engine powers the power steering pump with the serpentine belt.
There could be many reasons the engine stopped and the fuel pump is just one of them. Check for DTCs and diagnose the vehicle electronically with a pro grade scan tool computer.
The glowplugs are the second element for a diesel to start. When the timer sends spark to the glowplugs they must warm up to atomize the fuel. Each glowplug must be removed to test and if you do not want to replace all of them you check them by using jumper cables and a 12v battery. You would put the negative cable clamp on the thread housing and briefly touch the positive on the plug top. This can melt the part so realize that it is a comparison of how long and bright the part will glow. A dark result, slow to glow, is a worn out part. You would remove at least 4 plugs for your comparison at a time. Also check battery health as these parts need maximum juice to glow.
then starts again, and repeats??? gee.? or wont"?
fuel filter dirty?
bad fuel?
is it cold?
are the glow plugs ok
are warning lamps going unheeded? is the check engine light on running. did you scan the pcm for dtc errors?
Many things to check. Wonder if this work was done to alleviate problem or problem was from doing the work.
Putting gas fumes in a 21:1 compression cylinder is sure way to ruin engine.
2 possible problems are losing your diesel fuel draw from an air leak in the fuel lines and an inoperative glow plug timer.
When you change a fuel filter you lose the vacuum lock that is in the fuel lines. Some mechanics add fuel to the new filter to remove some of the air and promote fuel draw. The O rings on the injector lines are a special type which resists petroleum products. Using cheap O rings will cause problems.
Glow plug timer-there is a power Relay to the timer and the timer itself is a type of Relay. You should hear clicking noise and lights should dim as timer provides power to the glow plugs.
Other things to check would be the Vacuum pump as Diesels work differently than gas engines and require a pump to supply Vacuum. Covering the intake suggests engine needs a Vacuum draw.
Weak fuel pump. Too weak to pressurize or draw fuel. Can be measured with pressure gauges.
Really bad rings could also cause symptoms.
Would be interested knowing what proved to be wrong.
Is the glow plug timer opperating for long enough ? and do you wait for glow light to go out before starting? On real cold days there could be a problem with fuel waxing up in the lines, your heaters would compensate for this. some add a little kerrosene to the fuel. check with your fuel supplier. There is also a verry good Wynns product that lowers the freezing piont of the wax in deisel so that freezing is less likley to occour. hope this helps
Check all of your glow plug wires, if they are all on it may be your glow plugs or your fuel pump, glow plugs are cheap and dont cost much and are easy to replace. fuel pumps are not cheap and are very complicated to replace. I hope this information helped. Be careful and drive safe!
not always the golw plugs can be bad and the engine can be low on compression. does it start alot better if you add a gallon of kerosene to 5 gals of desiel? Or a quaart of gas? the glow plugs can be checked with a test light the connectrs are in plain veiw and the wires going to them are big. Follow the wires back to the relay they go straight there, the relay is real close to the battery as it draws alot of power follow the big wire on the battery that doesn't go to the starter and thats the glow plug relay. they last good but the connections get dirty, reconnect all the connectors on itand see with the key on if the glow plug light comes on on the dash that wire that lights the light is the same wire that lights the light fires the glow plugs. You can take the wire off the glow plug( you need to do it anyway it's a yearly service anyway and with a test light connected to power touch the disconnected glow plug with the lights probe and the light should light, not all of them are likly to be bad but if you find two or more just change them all as the ones that aren't out are likly to fail anytime and if you want to drive though the winter you need all the help you can gt. the battery cables and the one going to the glow plug relay are likly to fail at the battery so go over this good It might start fine with just two glow plugs working I'd pick the two center cyclinders or the two outboard ones as once the engine starts it'll keep running long enough to start the other ones. low voltage as your cranking can effect the glow plugs but the relay is suposed to turn the glow plugs off at cranking and time out after they've been on long enough. dirty connections are almost always the problem so clean everthing before you replace anything. Needs cleaned before yu put on new parts anyway and the glow plugs need to be taken out with the right tool or you may end up with a broken off glow plug in your cyclinder head.
Before anything else, you have to find out if it is a fuel delivery problem or a glow plug problem or, are your batteries tired? (Not cranking fast enough) Batteries have to be replaced every 3-5 years on a diesel.
1) Check your lift pump. It brings the fuel to the injection pump. It should make a buzzing noise when working. (You can feel the vibration if you put your hand on it.) It should buzz as soon as the key is turned to the on position without having to crank the engine.)
2) Check glow plugs. If the wait light only goes on for two seconds, then your glow plugs are burning out. (The wait light usually is on for at least ten seconds. Longer if it's really cold.)
3) Or the injection pump itself is weak. (Hopefully it's not this, as it can be very expensive to replace. We only want to do this as a last resort.)
I dont know if you have tried this, but first change the glow plugs, if that doesnt work or you have tried that, then clean off the terminal where the glow plug cables attach to by the battery. Hope this helps
DEPENDING HOW COLD OUT IT IS DIESELS DONT LIKE TO START IN COLD WHEATHER UNLESS THE GLOW PLUGS ARE WARM THIS IS THE REASON FOR PLUGGING DIESELS IN MOST WONT START IF ITS COLD OUT IF ITS NOT THAT COLD OUT IT SHOULD START IF YOU HAVE ENOUGH BATTERY POWER MAYBE THERES NOT ENOUGH FUEL GETTING UP TO THE THROTTLE BODY HOPE THIS HELPS
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