Glow Plug Relay
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New User
Joined: Feb 2006
Posts: 7
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Glow Plug Relay
Hello, I have a 200 F250 7.3 Powerstroke. This is the 4th winter I have had it. Have about 75000 miles on it. Two winters ago I was having trouble with it starting. Took it to a dealer and they changed the GPR. They convicned me to buy and carry an extra one, they said that these tend to go often especially during the winter. . Just the past few days, having the same problem, no doubt it is the GPR. Only problem is when I went to change it, I noticed that there are two of them and I haven't a clue of which one is actually the GPR. Which one do I change, the front or back?? they both look the same ...or do both have to be changed... thanks, Ken
Junior User
Joined: Feb 2004
Posts: 61
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From: Michigan
Mines the rear one. The other is the Manifold Intake Air Heater. Look for the one with the yellow wire on it crimped to the brown/yellow wire. It's the one you want. The manifold one has two big red wires on it.
