Help: 1986 Astro high idle

Apr 06, 2009

-   You can see my posting right before yours. I went and tried to buy a main engine computer temp sensor as directed by my auto mechanic who had destroyed my 1986 Astro van by removing main engine computer and repacing with a junkyard computer, etc. and other unknown insane things he did to my van to make it idle at 90 mph as i put it. i was sold a badically "thermostat" by the car part company that owns the repair shop that screwed me up. I am now seeking to find out how to get the right part and have been told it should fix the idle problem. I don't think so, however, I think it is the defective main computer he replaced for no known reason. That proves an idiot unlicensed mechanic is never the person to go to: I apid 800 dollars for this mess to a van not worth more than that total.-   Guest

Feb 10, 2009

-   Ihave a Chevy astro van 1986, 5 on floor clutch. A mechanic put a new ignition button on and bypassed something. Now it idles extremely fast when warmed up, very slow when cold. He claims this problem is caused by the heat sensor computer part. However, prior to him bypassing something i the ignition, it did not idle too fast. Two questions: is it dangerous to idel so fast,,,,the fast thing also starts doing it in first and second gear. ruined in Port Orford, Oregon -   juliasmmns