warm-up problem - Ranger-Forums - The Ultimate Ford Ranger Resource

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Old 06-10-2014
Thread Starter
Join Date: Dec 2013
Location: San Francisco, CA
Posts: 1
warm-up problem

Hey there, I'm wondering if anybody can give me some advice on my Ranger. It's a 1985, 2.3l, automatic transmission. Lately it's been running very rough on start-up. It starts fine and runs smooth for about five minutes then it starts to run rough and almost die unless I rev it up. It does this until its completely warmed up then it smooths out and run fine. I recently had a smog test here in California and all the numbers were fine. Seems to me the problem might involve the EGR valve, but not really sure. I'm hoping somebody can give me some ideas on it. Thanks to everyone.
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Old 07-10-2014
Join Date: May 2014
Location: MCKENZIE
Posts: 33
Throttle Position Sensor: Operation and Testing
The Ford Ranger Throttle Position Sensor

and i inserted a link with a pic of all the different air sensors and locations.
research the name of each sensor to try and find the source of your issue

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