Glow Plugs
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More Turbo
Joined: Jan 2004
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From: Houston
Glow Plugs
Anyone here ever changed or had changed the glow plugs on a 1997 Powerstroke???? How hard was it???? Or if ya had a shop do it howmuch did it cost ya, parts and labor?????
Junior User
Joined: Feb 2004
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From: Fremont Mi
I changed them on a 95 which is the same, about 7-8 hours total time including cleaning up. It's not too bad just a pain to get at. Do a search for the topic there are good directions and tips out there
New User
Joined: Dec 2004
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I'm almost finished changing out my glowplugs on my 97 powerstroke. Driver's side went pretty easy. Remove a couple part of the air intake for room and the valve cover comes off pretty easily. Before removing the valve cover, I cleaned the area and then disconnected the two electrical plugs leading into the valve cover gasket. I've had other ford folks tell me to leave them connected and disconnect the battery. Guess your choice. Below link has some great gouge on it.
https://www.ford-trucks.com/forums/showthread.php?t=315356&goto=newpost
I'm in the process of finishing up the passenger side. Little harder as less room to work in taking off and installing the valve cover. There's a bolt on the backside of the valvecover against the firewall that's really hard to get to. Patience there. I was told there was room to get the valve cover off the head by moving the firewall end first. Didn't work for me and I ended up replacing the glowplugs by moving the valve cover around and out of the way, but not getting it completely off the engine due to no clearance in the back. Good luck.
Joe
https://www.ford-trucks.com/forums/showthread.php?t=315356&goto=newpost
I'm in the process of finishing up the passenger side. Little harder as less room to work in taking off and installing the valve cover. There's a bolt on the backside of the valvecover against the firewall that's really hard to get to. Patience there. I was told there was room to get the valve cover off the head by moving the firewall end first. Didn't work for me and I ended up replacing the glowplugs by moving the valve cover around and out of the way, but not getting it completely off the engine due to no clearance in the back. Good luck.
Joe
Freshman User
Joined: Sep 2004
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I've changed my '96 not too bad the intercooled later versions have more ductwork on top and are harder to remove, you should test your glow plugs first to determine wich ones need changing, might save some time, one suggested way is to use a check light attach clip to V+ then test the outside prongs on the valve cover harness, if it lights your OK, don't touch anything else though. you can also use a Digital voltmeter to ground should read something like 6-7 ohms, if it reads in K-ohms you plug is bad, I mention all of this because many people have changed all their plugs only to find all they needed was a cycling unit, (less money and way easier to change) good luck
New User
Joined: Jun 2004
Posts: 12
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check this link: http://andersonimprovements.com/hobb...sandrelay.html
It's a great writup of the glowplugs and relay.
It's a great writup of the glowplugs and relay.
Senior User
Joined: Jun 2002
Posts: 116
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From: Western Slope, CO
I, too, recently replaced a glowplug. According to the Ford Service Manual, the resistance for a '97 is .1 to 2 Ohms. In order to test, it says to unplug all four harnesses first, or you will get incorrect readings. The pins to test are the two outside pins in each harness (there are 5 pins each). Ground your voltmeter to the battery negative, then go from there. You can also check the resistance from the wire harness on the relay side back to the relay. The manual says you should have between .1 and 1 Ohms. Also, you should have between 9 and 12 volts to the glowplug relay. Hope that helps.
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