I've heard for years about the early failures of timers in both GM and Ford diesels. I've got two Fords (6.9 and 7.3) and over twenty GMs with 6.2 - and I've yet to ever find a bad timer. For the 6.2s, that includes the early separate relay versions, and the later unitized versions. I suspect they are often blamed for problems they did not create. With the older setups, the glow-plug inhibit switches and relays are usually the culprits. Regardless, new controllers can be bought for $55 if you shop around. As far as the manual button goes - they are fine except when it comes to lending the vehicle to someone else and trying to explain it's function. The OEM timers do not cycle properly with the newer burn-out-proof dual-coil glow-plugs. You have to change one resistor to make it work properly - which costs around 75 cents.
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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