Question about 1990 Ford F150

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MOTOR OPERTAES WITHOUT KEY

AFTER STARTING ENGINE, STARTER CONTINUES TO RUN. TURN KEY TO OFF AND REMOVE, AND THE ENGINE STILL RUNS. I MUST REMOVE THE BATTERY CABLE TO STOP ENGINE. IF KEY IS OUT OF IGNITION AND BATTERY CABLE REPLACED, THE ENGINE WILL TRY TO START BUT NOT CATCH.
1990 F150 6 CYL. AUTO

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  • Ford Master
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Your starter,solenoid or ignition is no good. but my first choice,i think your solenoid is shorted because when you hook up the battery,it cranks but does not start.that means your ignition switch is still working.

Posted on Jul 22, 2009

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  • Master
  • 335 Answers

Check the starter soleniod. The soleniod may be worn internaly and sticking in the start mode. Best thing is to replace soleniod.

Posted on Jul 22, 2009

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2 Answers

Turn key. starter engages flywheel engine start to turn over. Then starter disengages form flywheel but continues to spin without care actually starting.


There maybe a problem with starter motor? Some of the national brand auto stores will test starter for you. Of course, you have to take it off and take it to them.


You could take the starter off, lay it on the ground, Hook up jumper cables properly from starter to battery. The starter should kick-out the drive gear and spin. If starter drive gear kicks out and in, something is wrong. Anymore I replace starter solenoid and starter motor as an assembly.

It wouldn't hurt anything to check flywheel teeth while your at it.

Oct 29, 2015 | Pontiac Grand Am Cars & Trucks

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1999 range rover 4.6she starter keeps running


Just changed mine for the same problem!!! replaced starter, problem solved! Unusual design by american standard, for the main motor to continue to drive, !?

Jan 29, 2013 | 1999 Land Rover Range Rover

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The engine in my 1984 firebird wont stop turning over after key release


If you are talking about engine cranking, then you should check for free operation of the starter motor solenoid. This is situated on the top/side of the motor and it\'s job is to engage the starter motor only when the ignition key is turned to the crank position. It is plausible that the solenoid has become corroded, or fused in the closed circuit position.
To check to see if this is the case, remove and clean the starter motor solenoid, and test it\'s operation while off the car.


If you are talking about continuous running, not cranking, then you will best use an endoscope and insert it into the engine\'s cylinders to view the innards. You are looking for a build up of carbon on either the valves, valve stems (when in the open position), pistons, and cylinder head. Also check the condition of the spark plugs for a build up of carbon.
Carbon is a byproduct of combustion, and can build up on some internal engine surfaces. This can cause a number of issues when running. The carbon becomes red hot and can retain it\'s temperature for a long period of time. When you turn off the engine in a carburetor vehicle, then air and fuel can still be drawn into the engine while its momentum winds down. However as the red hot carbon in the cylinders is hot enough to ignite the fuel and air mixture, the engine still runs, still turns and continues to suck in more air and fuel mixture, and continues to operate.
It may operate quite roughly and eventually stall out, as the fuel/air mixture isn\'t as efficiently burned when ignited by hot spots, and the hot spots may eventually cool enough to fail as an ignition source.


These two above examples are perhaps a couple of the most common reasons for an engine continuing to run after the ignition key has been turned to the off position, or has even been removed from the lock/barrel.
The only final reason for the engine managing to keep running after the key has been removed, is a faulty ignition lock/barrel mechanism.

Nov 18, 2012 | 1984 Pontiac Firebird

1 Answer

Trouble starting keeps running after turning it off


If it is chugging and running rough after you turn the key off, it may be "dieseling" which is caused by carbon buildup in the cylinders and the idle speed being higher than spec. Pulling the coil wire from the coil and the engine continues to run is a good example.

Aug 26, 2012 | 1991 Ford Ranger Supercab

2 Answers

Battery is good but when I turn it on it just clicks won't start,maybe after 20 times it starts


Without hearing the sound it makes - it's kind of hard to diagnose.

The engine starting process consists of turning the key to start, the starter motor's rotor moving forward to engage the engine's flywheel, and then the starter motor 's "rotor" spinning until you move the key from "start" to "run". You can hear the starter motor spinning - but one usually can't hear the rotor moving forward to engage the flywheel. As a result, you hear the odd spinning sound - which is the starter rotor spinning. The engine never actually turns over because the rotor never engages the fly wheel. If this is the case, then it is very likely that your starter needs to be checked and / or replaced.

Good luck!

Nov 09, 2011 | 1994 Buick LeSabre

1 Answer

I have a 1977 Porsche 924, when the key is turned to start the car the starter starts the engine ok but the starter continues to run? Even if the key is removed from the car the starter and engine continue...


hello there
Most likely you need to replace your electrical portion of the ignition switch.It is a common problem.
here is the part number
111 905 865 L

proporsche@yahoo.com

proporsche

Jun 10, 2011 | Porsche 924 Cars & Trucks

2 Answers

99 dodge ram 3500 diesel starter will not shut off with key, turn off key and starter moter stays engaged and engine has run on. had to disconnect both batteries. gently tapped starter selenoid with hammer...


it sounds like the starter solenoid contacts are not separating to stop the starter from turning.the run on is due to the starter not stopping causing the motor to continue to spin.replace the starter unit as it will have damage due to being engaged with the motor running,also have the flywheel inspected to make sure the teeth are not damaged on it.

Apr 12, 2011 | 1995 Dodge Ram 3500

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