For what it's worth, my '89 Chev heavy half, 4X4, Xcab, long box started idling rough and got horrible gas mileage.
Turned out the diaphragm had ruptured in the EGR valve, giving the same effect as pulling the vacuum hose off the valve and not plugging it. Plugging the vacuum hose made it run only marginally better. Wasn't until I replaced the EGR valve and got the system working properly that the pickup ran properly again.
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Today's Featured Article - Bad Vibes - by Curtis Von Fange. One of the strangest ways to communicate with our tractor is to ask it how it feels. "Ask it how it feels," you say? Yup, ask it how it feels. Now, as with the other articles in this series one has to be able to hear what 'ole blue' is trying to say in response. The nice thing about our old iron friends is that they are usually quite consistent in their response, rather unlike some people I know who might change what they say due to the weather or other mitigating circumstances. But since t
... [Read Article]
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