Join Date: Jul 2011
Location: South Weber
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Thanks for your help. Here's more information.
It's been getting progressively harder to start over the last 2-3 months. It's been in the 40-50 degree range, so not real cold. I've plugged it in for 3 hours whenever I've needed to drive it this last winter. Its not a daily driver, so it sits most of the time.
The last time we drove it, we had just changed the glow plug relay, and plugged it in for 3 hours (45 degree day), and it started on the third cycle of waiting 1 minute for the glow plugs. Then we drove for about 30 miles. We stopped for fuel, and it wouldn't restart. Tried 3 times, and we were afraid of getting stranded because the batteries were getting weaker. So we bought a can of ether and it came back to life. Ran fine until we got back home, which was about 18 miles.
I attemped to start it again last week, but it wouldn't fire up. I tested the relay again (tested OK) and then pulled the harness off per the link you sent me, and check the resistance of the glow plugs (tested OK). I didn't check the harness side: I will do that when I get home tonight, in case there's a disconnect between the relay and the harness.
The truck has 240,000 miles and it stock except for the aftermarket air filter. The fuel filter was changed within the last 1000 miles. We add Standyne fuel conditioner to the diesel.