Best GPR?
Senior User
Joined: Nov 2019
Posts: 159
Likes: 23
Must be the time for glow plug relays. Chucked a Trombetta one in yesterday too. Quick easy swap. For reference if someone is missing a nut for them, it's 5/16 UNF. The 2 smaller ones you can swap from the original. My post nuts wouldn't swap over.
Ordered a second relay to keep on the shelf
Ordered a second relay to keep on the shelf
Lead Driver
Joined: Jun 2013
Posts: 5,648
Likes: 893
From: north of Minneapolis, MN
I'm going to drag this post back up.
I finished the install of the CNC Fab 4 Line Fuel feed and CNC Fab Stage 2 HPOP. WHen I turned the key I was getting smoke from the Stancor relay. Not smoke from the relay, but, smoke from the heat sealing goo ion one of the connections. The terminal was hot, really freaking hot which leads me to believe the is some crazy amount of internal resistance in the Stancor...not wires are heat damaged.
Now a new Stancor is in the neighborhood of $90 groans now....where the Trombetta is $22. I'm pretty sure in past reading that both @cleatus12r and @Y2KW57 commented that there was something different between the GPR and AIH relay. Which prompts the question...jhow do either, the Stancor and Trombetta compare to the OEM GPR?
Thanks in advance!
I finished the install of the CNC Fab 4 Line Fuel feed and CNC Fab Stage 2 HPOP. WHen I turned the key I was getting smoke from the Stancor relay. Not smoke from the relay, but, smoke from the heat sealing goo ion one of the connections. The terminal was hot, really freaking hot which leads me to believe the is some crazy amount of internal resistance in the Stancor...not wires are heat damaged.
Now a new Stancor is in the neighborhood of $90 groans now....where the Trombetta is $22. I'm pretty sure in past reading that both @cleatus12r and @Y2KW57 commented that there was something different between the GPR and AIH relay. Which prompts the question...jhow do either, the Stancor and Trombetta compare to the OEM GPR?
Thanks in advance!
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Do you still have the old relay that powered the intake air heater laying around? It looks very similar to the glow plug relay, except it's larger. It's the one I'm using on my truck after the glow plug relay gave up the ghost on a camping trip 15 years ago. Swapped the necessary wiring over to that relay to get us going in the morning 1,000 miles from home and it's been pulling that duty ever since. The old GPR hit the scrap heap a LONG time ago now.
Super Moderator
Joined: Dec 2011
Posts: 13,337
Likes: 6,117
My truck still has the OEM production GPR and AIH relays that it was originally built with, almost 24 years ago, that are both still in service.
Good job checking and detecting the overheating before it became a bigger problem.
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,355
Likes: 5,947
From: Lake Hartwell, GA
Trombetta here since early 2021 and working great.
Dan, I recall a note from Cody about the relays as well, but I believe the AIH and GPR are the same other than the wiring associated with the function. The starter relay however is NOT the same as the other two.
Found this: https://www.ford-trucks.com/forums/1...l#post18121876
@ESwift identified a continuous use Trombetta that is different than the 684-1241-212 we have been sharing here on the FTE. Although, the duty cycle was never determined to be close to or exceeding the actual use when mounted as a GPR on the 7.3L.
Dan, I recall a note from Cody about the relays as well, but I believe the AIH and GPR are the same other than the wiring associated with the function. The starter relay however is NOT the same as the other two.
Found this: https://www.ford-trucks.com/forums/1...l#post18121876
@ESwift identified a continuous use Trombetta that is different than the 684-1241-212 we have been sharing here on the FTE. Although, the duty cycle was never determined to be close to or exceeding the actual use when mounted as a GPR on the 7.3L.
Cargo Master
Joined: Apr 2022
Posts: 3,201
Likes: 1,704
@ESwift identified a continuous use Trombetta that is different than the 684-1241-212 we have been sharing here on the FTE. Although, the duty cycle was never determined to be close to or exceeding the actual use when mounted as a GPR on the 7.3L.
FTE Chapter Leader
Joined: Jan 2005
Posts: 13,129
Likes: 4,727
From: Henderson, NV
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FTE Chapter Leader
Joined: Jan 2005
Posts: 13,129
Likes: 4,727
From: Henderson, NV
I’d say you got your money’s worth from that Stancor then. Even at today’s price, that’s $90/3,562 days = 2.5¢ per day.
Super Moderator
Joined: Dec 2011
Posts: 13,337
Likes: 6,117
The only consolation is that I saved all the packaging that it shipped in.
Not to return the GPR... but to drive the packaging.
Lead Driver
Joined: Jun 2013
Posts: 5,648
Likes: 893
From: north of Minneapolis, MN
I went to O-O- Oreilly and got a Standard Products "Lifetime" warranty GPR for out the door $40.
I can tell you this....at 87 degrees ambient...the glow plugs are on a pretty short time.
I can tell you this....at 87 degrees ambient...the glow plugs are on a pretty short time.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
It sounds like I’ll be replacing a Trombetta GPR I installed with new GP’s and fresh injectors in October ‘21. A little over 50k miles on all that.
Customer reports hard starts below 40* unless using the block heater.
Ive swapped the stock AIH relay in place of a few failed GPR’s ‘in a pinch’ and some still work 10yrs later.
Customer reports hard starts below 40* unless using the block heater.
Ive swapped the stock AIH relay in place of a few failed GPR’s ‘in a pinch’ and some still work 10yrs later.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
It sounds like I’ll be replacing a Trombetta GPR I installed with new GP’s and fresh injectors in October ‘21. A little over 50k miles on all that.
Customer reports hard starts below 40* unless using the block heater.
Ive swapped the stock AIH relay in place of a few failed GPR’s ‘in a pinch’ and some still work 10yrs later.
Customer reports hard starts below 40* unless using the block heater.
Ive swapped the stock AIH relay in place of a few failed GPR’s ‘in a pinch’ and some still work 10yrs later.