Compression Ignition Addict
Join Date: Oct 2011
Location: Tehachapi, CA
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What did you replace the GPR with (stock or aftermarket)? If aftermarket, you need to make sure the unit you used is a "case-isolated" type of relay. If it is a "case-grounded" type of relay (such as a starter relay), the glowplugs will not turn off. On my 97, the starter relay has a smaller gauge red wire on one large post and all the other larger gauge wires (red, doubled gray (or maybe white) and doubled green wires ... the doubled ones may be the fusible links) on the other large post. Cheers!
1997 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed
SOLD - 1994 F350 CC DRW 2WD PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, DPPI DP, Bilsteins, $12 AIC, Coolant Filter, Explorer Overhead Console, A-Pillar w/ISSPRO Black Ice, EV Boost, and EV Pyro, Modified Pedestal, Gutted EBPV.
Last edited by Patrick Feeley; 01-01-2012 at 08:21 AM.