Join Date: Jul 2007
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Early 6.9's from 83 to 85 (there is a vin # cutoff) were known to crack blocks in the block-heater area if it was used extensively. Some of the earlier 6.9's had head gasket problems as well. And the glow plug controller in trucks through 86 would fail in the "on" position, burning out all of the glow plugs(don't ask me how I found this out!!)
These IDI's aren't powerhouses, but they tend to be reliable, inexpensive to work on(for a diesel), and return reasonable fuel economy numbers when compared to gas trucks of the same era.....plus they just sound cool!!
Smokey- 1989 Ford F-250 XLT Lariat Regular Cab 4X4 1984 N/A 6.9L with ARP studs,Rebuilt heads, Head and upper end gaskets,Rebuilt IP(2nd rebuild in 4 months), Holley Red Electric Pump, New injectors, Walker BTM with 3" exhaust system, Rebuilt T19,Resealed 1356, 4:10s, 33x12.5x16.5 All terrains, Autometer Gauges,clean interior with new vinyl upholstery, herculined-floor, Pioneer cd player and Sony speakers, good exterior with the exception of the crappy Ford auto-peel hood paint