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  #1  
Old 07-26-2011, 02:45 AM
Emerson Emerson is offline
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Default 1990 Ranger manual 2.3L idles high

I am tracking down a high idle issue (1500 - 200 rpms) . I have put in new: plugs, plug wires, IAC, Throtle control valve, water pump, timing belt and drive belt, power stearing pump, starter, flywheel, solenoid, and cleaned the throttle body with carb cleaner and put in new gaskets and she still idles high. Need some help here frome some one who knows my truck. Thank you thank you thank you!!
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Old 08-01-2011, 03:55 PM
mt1986 mt1986 is offline
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Default Re: 1990 Ranger manual 2.3L idles high

check for vacuam leaks by spraying carb cleaner slowly around and on intake system, when idle slows down you have found the leak
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Old 08-03-2011, 12:14 AM
Emerson Emerson is offline
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Default Re: 1990 Ranger manual 2.3L idles high

Thank you! I will try that. I put in a new power stearing pump that wines and it is so much worse having the engine rev like crazy
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Old 08-04-2011, 07:09 PM
Davidson Davidson is offline
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Default Re: 1990 Ranger manual 2.3L idles high

Yes check the vacuum line to the fuel pressure regulator. If you.take it.off and start it, it'll rev around.that range. Try that. Hose first.
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"Pulling a 3,000LB load, 300 Miles, with 2/5 Quarts of oil, will not hurt an old 2.3L engine." (Experience)
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Old 08-25-2011, 10:33 AM
Emerson Emerson is offline
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Default Re: 1990 Ranger manual 2.3L idles high

sprayed carb cleaner all over and no leak. Ran diagnostic and code says vac and egr. I was under the impression that the EGR would not cause "High Idle". Anyhow, Idleing now around 1800 and I replaced the pcv just for good measure. Adittionally My new Power steering pump whines and even bleeding it under vacuum does not seem to help. Sounds great with the 1800 rpm idle
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