Question about Ford Ranger

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I have an 89 ranger 2.3l dual plug. its running rough at idle, smoothes out at higher rpm and there is a destinct clicking noise coming from passanger side of the engine

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Sounds like a valve adjustment is in order .

Posted on Mar 16, 2011

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If you have a check engine light the best thing is to read the codes and find out what the problem is. Many shops like Aamco read codes free.

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I have a 95 mustang v6 that I got as a project. It had blown was gasket and ran rough at idle with lack of power. I redid heads and gaskets etc it runs great and has good power but still idles rough at...


Idling is too slow at 500 rpm.......think about at least 650 rpm to charge the battery and keep up inertia for better take-off power.
Find out how to increase rpm,whether it's a screw-stop adjustment or a timing problem. don-ohio (:^)

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01 ford ranger backfires at higher rpm don't no


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My 1973 ford f100 will idle rough at lower rpm's


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Aug 10, 2011 | 1981 Ford F 100

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2004 Ford ranger rough idle at 1200 RPM. Hi, my ranger just came from the garage with no fix. It has 64000 miles and developed a sputter between 1000 and 2000RPM. Runs like hell and idle is fine , no...


Hello, I suspect the problem can be one of three things. An idle speed control Solenoid or a leak in the Intake system or bad valve runner operation. First, disconnect the accelerator cable at the Throttle connection. I am reading that you have a rough idle at 1200RPM and then that the idle is fine.

The idle is too high if it is set at 1200. By disconnecting the accelerator cable, you will find out if the cable is binding at low rpm. If the engine now idles slower with the cable off, you have found part of the problem.

The ISC, idle speed control, usually fits in a shallow well in the Intake, has a valve which routes extra air into the engine to smooth the idle. The valve shaft can be cleaned with WD40 and you can degum the passageway. Too much air at the wrong time can increase RPM and give the other controls fits trying to compensate, resulting in sputter.

A leaking intake manifold or manifold gasket can create the problems you describe. Use a hand spray bottle of water and mist the seams while the engine is running. A leak will draw in the water and change the RPM. Then fix the leak. Some 6 cylinder manifolds have 2 piece sandwich designs and the gaskets usually fail over time.

If you have the type of engine with intake runners, there are activating Pods which move rods underneath the Pods. Some have plastic clips which break and the rods fail to work after that.
Since the Electronics work, you will not get a check light. This defect sounds a lot like your problem because the Intake has certain flow designs to regulate power at different RPMs'. You are having problems only within a certain RPM range.

I hope my solution gives you new ideas on inspecting your engine for the problem.

Jun 02, 2011 | 2004 Ford Ranger

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2000 Chevy s10 2.2L very rough idle at low rpm


run a fuel pressure test, if that checks out fine it may be a faulty coil pack or ignition control module

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Rough idle at higher rpm smooth


You have a vacume leak somewhere. You can try to listen for it or you can get a can of brake parts cleaner and spray it around the engine. Anywhere there is hoses or connections of any kind. When you find the leak the engine RPM's will increase. If thats not the problem it could be your EGR valve is clogged or your map sensor could be bad. Those things would usually cause a check engine light. Vacume leaks wont. Good luck

Jun 19, 2009 | 1985 Chevrolet Chevy

1 Answer

Running roug at low idle, smooths out at 2500 rpms


change plug and wire if its been a while most cars have 90000 miles platinum plugs in them.but the wires wear before plugs.so change plugs and wires.+clean fuel injectors .change fuel filter and air filter.if car still run rough your idling to low.have idling check .

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Truck idles rough but at higher RPM runs fine. Checked codes and it is randomly misfiring on all cylinders. Also every now and then when changing gears revs up on its own and even at a stop engine revs up,...


Sounds like either the EGR valve is leaking ( if it is it will be very hot), or you have a serious vacuum leak, take a can of carb spray, and spray around the intake manifold and see if the idle smooths out if it does you will need to repair the vacuum leak, it could be a vacuum hose or the intake itself leaking.

Jul 29, 2008 | 1998 Ford Ranger SuperCab

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