Five terminals, only four wires. Flat plug, wires side by side, lift tab to release wire plug. ASE MAT and MTT. GM Master Truck Technicians Guild Charter Member. '82 GMC 6.2 N/A, 3/4T 4X4, THM 400HD, 4:10's, 240,000 Miles, 15.5 MPG highway, 13 City. Sold and performing daily duty in British Columbia.
Glow plug prices can vary, but somewhere between 25 and 50 per plug is pretty standard, meaning they are a little pricey, but not too bad. In the ford s max the glow plug relay is located towards the rear, beneath the airbox and in front of the gearbox.
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