Question about 1987 Ford Ranger

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Fast idle I have a 1987 Ford Ranger pickup with a 4 cylinder engine. Ir has started recently haveing a fast idle. Any suggestions as to the cause? All of the hoses etc. are hooked up and all looks ok visually.

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Chk the MAF sensor. first sensor in duct coming out of air filter. Good luck.

Posted on May 22, 2009

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Posted on Jan 02, 2017

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What could cause a 4 cylinder stick shift engine to just shut down randomly in the middle of the road


Ignition component failure. This could be the coil pack, the crank sensor, the ignition module.

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I have a 1983 Ford ranger with a 2.3 4 cylinder, yesterday, after replacing a lot of parts, it finally was running great--no miss or rough idle. Until I revved up the engine. Then it started running...


Hello, If this is a push rod engine I had an identical problem with an engine in my 1988-1989 Jeep Wagoneer. It was a Buick V-8 and behaved exactly like your Ford engine.

On my engine it was weak valve springs. You could take your thumb and push on the valve spring while the engine idled and the engine would miss out. Turn it off and start it up and it would idle smoothly, rev it up and let off the gas and it would miss out and shake. You could also have hydraulic lifters (check your model) and they could behave like this. At idle the lifters would pump up, but the lifters may not refill fast enough to work the valves smoothly.

If you have hydraulic lifters they must be centered in their travel to pump correctly. Even if you have solid lifters the valve adjustment can affect engine performance.

Jul 19, 2017 | 1983 Ford Ranger

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1987 Nissan truck, VG30 engine for past several months is idling too fast. Tried adjusting idle - no luck. Searched for RPM idling between 1500 to 2000 all the time? Even with warm engine.


The choke cam, which advances idling when the engine is cold, is possibly stuck in a partially closed position. A spray of penetrant oil with a bit of manipulation of the shaft should fix that problem.

Jan 15, 2011 | 1987 Nissan Pickup

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The IAC (idle air control) may be stuck from dirt or malfunctioning.It's located in the intake near the throttle body.Remove it clean with carb cleaner and reinstall

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1987 Ford Ranger 2.0L idle is very high and wont go down


Sounds like you need W-D40 on all the movable parts of your carb. Also see what is blocking the butterfly to close all the way. Check the high idle linkage and see if it is properly closing all the way on warmup.

Aug 26, 2009 | 1987 Ford Ranger

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Engine has a fast idle and wont kick down. Ford Ranger 2.0L 4 cyl


sounds like a stcuck choke to me as well have you tried spraying the choke with lube or installing a new one?

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either a vacuum leak or an idle air control valve problem most likely.the iac is on the side of the throttle body.cylinder shaped with a small harness.

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1987 4x2 idling really fast when cold and stalling


Its idiling fast cause ur choke is on it mabey broke and flooding the engine check your choke valve

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1 Answer

Why is my 1994 Chevy S10 Blazer lugging? motor shakes and lugs.


Could be vacuum leak or bad ignition wire(s).

I had a similar problem on my "93 Ford probe. The engine idled pretty rough with shakes, Turned out to be a head gasket leaking engine coolant into the cylinder during low rpm's. At fast rpm's it was fine becuase the internal cylinder pressure was greater than the hot coolant pressure & would prevent the coolant from leaking in.

A friend has the same problem with his "94 Blazer 4.3 L, throttle body injection, manual tranny. He hasn't fixed it yet, It started a few weeks ago & is getting worse. His gets a fast idle with hiccups which causes the engine shake. He already checked the EGR valve. He also has a severe exhaust problem, Not oilly but very gray & terrible smelly, but only when the fast idle problem happens. THis fast idle hiccup problem starts when the engine is warmed up.

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