Join Date: Jul 2005
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My guess is a glow plug relay on top of the engine there are 2 round 4-post relays, If I remember correctly it is the rear most, but could be wrong. check both large posts for + voltage at key on engine off, but you'll want to be quick as they usually shut off after 10-30 seconds.
The other relay is for the air intake heater. (round plug at at front side of turbo x pipe. Compressor side.
Look for a napa GPR109 about 20 bucks, same part as ford but about 100$ cheaper, the bolt holes don't quite line up, but if you keep the small wires on the small posts, and the big wires on the big posts it will work fine!
2000 F-350 NVK5, XLT Island Blue 7.3 PSD 3:73LS Reg Cab LB, 151,000 mi. and counting! STOCK EXCEPT:BTS Transmission, 6.0 Trans Cooler, AutoEnginuity 3.4, GI-normous, Home made Tymar, CCV mod, HX-MOD, Heater-plug mod, "Custom 6-pos Chip", Autometer Z-Series Gauge pod, Beans Stage 2 Single-Shots, Zerex G-05 Coolant, Kenwood Excelon KDC-X869/Sirius Satilite, 8" Fisher plow, 407.1 hp / 849.1 ftlbs 13.686 @96.69
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