Dan Heftler
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• Ramsey, NJ, USA |
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• Registered on 4/12/2003 |
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• 3 posts |
• 1 Vehicle
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 Posted:4/12/2003 20:43 |
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Hi everyone! I am desperate for some advice! I picked up a 90 full-size Bronco that was in great shape (or so I thought). The most recent problem which has me stumped is that when I start the truck, the motor races to 2500-3000 rpm and hangs there. Nothing appears to be stuck. When you drop it in gear, it returns to a reasonable 1000 rpm with the brake on. However, it feels like it cuts in and out (wants to die). Once in a while, when you start it, it runs fine but the "check engine light comes on". I am convinced that it is a sensor somewhere but have no idea where to look. If I cant fix this reasonably, it may have to go away. :-( Havent had a trouble free week yet! Any help is appreciated! Thanks! |
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Randy Zrubek
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• Palacios, TX, USA |
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• Registered on 5/1/2002 |
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• 82 posts |
• 7 Vehicles
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 Posted:4/12/2003 23:45 |
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It could be the IAC (Idle Air Control) valve needs cleaning or is going bad. There's some posts at other Bronco/ Ford truck sites on cleaning this. If it gets some gunk in it it will stick. Try F150.net or FordTruckWorld. Hope that's all you need to fix!!! |
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Dan Heftler
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• Ramsey, NJ, USA |
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• Registered on 4/12/2003 |
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• 3 posts |
• 1 Vehicle
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 Posted:4/22/2003 21:35 |
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Looks like that may have been it! I replaced the valve (better safe than sorry) and it ran a little rough at first but then smoothed out. Now it seems to be OK. Thanks for the advice! It is great when you have a "community" to back you!
Thanks again! |
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