Recent hard starting after service....???
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Freshman User
Joined: Feb 2004
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Recent hard starting after service....???
I've recently had a service and now have a cold start problem which I didn't have before. In the morning the engine will try to start, cough, and then just crank for 15 or 20 seconds until it fires up. When it fires, it will run rough for 10 or so seconds and then everything is fine. Later in the day it fires up immediately as it used to.
My suspicion is that somehow air is being allowed into the low pressure side of the fuel system when the truck sits for a long time. (The fuel filter was changed.) In the morning the last of the fuel from the injector pump gets injected causing the initial cough. Then the long cranking is getting the air bled out. When it fires, the airs gone.
Any other ideas or suggestions.
Thanks.
-Dave
'94, F-350, crew-cab
My suspicion is that somehow air is being allowed into the low pressure side of the fuel system when the truck sits for a long time. (The fuel filter was changed.) In the morning the last of the fuel from the injector pump gets injected causing the initial cough. Then the long cranking is getting the air bled out. When it fires, the airs gone.
Any other ideas or suggestions.
Thanks.
-Dave
'94, F-350, crew-cab
Posting Guru
Joined: Jul 2003
Posts: 1,028
Likes: 1
From: San Antonio
Sounds like you're glow plugs more than you're fuel? when where they replaced ? remember to buy the motorcraft/beru ones. Fuel would be an all the time issue. That rough runing is because its missing because it isn't up to tempeture in the combustion chamber on all the cylinders.
Posting Guru
Joined: Jul 2003
Posts: 1,028
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From: San Antonio
Yeah I'd have them replaced I have done mine almost every year (I put the wrong ones in the first couple of times.)glow plugs should last two years at least.
Last edited by nogo73; May 15, 2004 at 01:47 AM.
Post Fiend
Joined: Nov 2003
Posts: 21,285
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From: Nutter Fort, WV
No they usually burn out one at a time....but the more that burn out the harder it will start.
If they all went out at once, it is the controller or the relay.
Remove the wire cap off each glowplug.
Clip the ground clip on a regular auto test light to the positive battery terminal.
Touch the tester to each glowplug connector.
The ones you touch that do not light the light are bad.
If they all went out at once, it is the controller or the relay.
Remove the wire cap off each glowplug.
Clip the ground clip on a regular auto test light to the positive battery terminal.
Touch the tester to each glowplug connector.
The ones you touch that do not light the light are bad.
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I don't think it's the glow plugs. When I park the truck downhill it starts like a champ. When I park it uphill it doesn't. I need to park it uphill and put it on the other tank. Maybe it's the in-tank fuel pump not getting the fuel up to the injector pump.
Any ideas?
Any ideas?
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