Took my '87 (stock 2F) on a 400 mile road trip this weekend (200 miles each way), and experienced some wierd stuff going on at idle. Here's the story:
I was running late on my way down, so I gassed up and drove straight there without stopping. After 200 miles of interstate driving (speedo at approx 65 mph on 31 in tires - around 3000 RPM), my engine wouldn't idle once I got off the interstate. I had to keep the RPMs up to keep from stalling (which I did a few times at stoplights). Parked the truck for 6 hours, got back in and it did the same thing. Drove 2 blocks to my hotel and left it overnight. When I cranked it up the next afternoon, there was no problem and it hasn't done it since, including when I got back home after driving the 200 miles back.
What do you think the issue is? Considering I got 16.2 miles/gallon on the way down (I couldn't believe it either), I think the engine is tuned pretty well. Idle typically sits at around 700-800 RPM.
Thanks for your help!
I was running late on my way down, so I gassed up and drove straight there without stopping. After 200 miles of interstate driving (speedo at approx 65 mph on 31 in tires - around 3000 RPM), my engine wouldn't idle once I got off the interstate. I had to keep the RPMs up to keep from stalling (which I did a few times at stoplights). Parked the truck for 6 hours, got back in and it did the same thing. Drove 2 blocks to my hotel and left it overnight. When I cranked it up the next afternoon, there was no problem and it hasn't done it since, including when I got back home after driving the 200 miles back.
What do you think the issue is? Considering I got 16.2 miles/gallon on the way down (I couldn't believe it either), I think the engine is tuned pretty well. Idle typically sits at around 700-800 RPM.
Thanks for your help!