Question about 1993 Ford Explorer Limited

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I replaced a bad starter and battery . The new starter spins but does not engage the motor . Also the gear on the new starter slides freely in and out by tilting the starter . Why is that ?

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Your new starter is broken. Take it back to the parts house and have it replaced.

Posted on Sep 27, 2010

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Why does my starter engage for only a second, then spin freely after that. it was removed and tested at Autozone and passed. The starter stayed engaged during the test when no load was encountered.


Hi Anonymous

What I believe you've said is that you turn the key to start, the engine turns over for a second, then you just hear the starter spinning but no engine turn over. Yes?

Then you took it to Autozone and tested it and it stayed engaged during the test. The differences, possible or real here, are the load on the starter gear end, and the electricity driving it.

There are a couple things happening in the start cycle. The motor starts spinning and the solenoid pushes the spinning gear forward to engage the toothed edge of the flywheel. If the solenoid doesn't push enough, the gear won't engage. So, one thought is that there's an issue with the solenoid - it may push the gear out just fine, but lack power to keep it pressed forward if there is back-force from the engine.

If you have a poor connection to the battery, the solenoid may not draw the current to keep the gear engaged. Checking the hot (red) wire both at the battery and where it attaches to the starter is the primary diagnostic there. Even if the battery has a good charge, the current draw if starting is the heaviest load it encounters in a typical day of driving, so the ability of the battery to dump that charge quickly in a pulse of high current is also important, and non-corroded, tightly connected wires help.

The starter gear also has a clutch in it - akin to the freewheel on the rear of a bike, or a ratchet. This lets the gear spin faster than the starter motor once the engine catches, so that the engine doesn't essentially grab the engaged starter motor and spin it waaay too fast. letting back on the key lets the fast spinning gear disengage without trouble. If there is an issue with that clutch/ratchet, that might also be allowing the gear to spin without it actually pushing - like the clicker in a ratchet sticking so that it'll spin either way.

After that.... there is likely both a relay and a fuse for the starter. Not a bad idea to check that neither is blown, or, in the case of the relay, looking sort of browned and cooked.

Hope this helps!
D

Dec 05, 2015 | 2000 Oldsmobile Alero

2 Answers

Starter is new and won't engage the flywheel.


2003 Chrysler Sebring 2.4L SFI 4cyl ' Repair Guides ...

www.autozone.com/.../repairGuideContent.jsp?...Starter...
AutoZoneAutoZone Repair Guide for your 2003 Chrysler Sebring 2.4L SFI 4cyl Engine Electrical ... Bad starter drive or flywheel-driven gear. ... Starter Spins Freely, Won't Engage ....Center the snapring on top of the shaft (use a new snapring if the original was ...Vehicle + Keyword: 04 Toyota Camry oil filter, battery 2005 Silverado.

Sep 18, 2015 | 2005 Chrysler Sebring Conv

4 Answers

Turn key get nothing jump starter and sylenoid just spins


i cant dope out that symptoms.

does it crank or not. be clear there.

no car starts (but my 6sp) if it dont crank.

on A/T cars cranking is a first thing. so does it.?

Solenoids do not spin, the stroke only , it a linear motion.

the Sol. moves the pinion and the main contactor switch only.



my guess is the Starter spins and the crank don\'t spin,

you hear the starter motor spin up, it sings. like bird.

that means the starter /solenoid are bad. (crude)

if the battery is good and or jumper starting off a running car.



It can just be a dirty starter pinion, clean it , repeat.

fixed many for this. i have.



battery cable lugs clean, and good. no green rust.

bad cable usually just make a loud THUNK sound. no spin.

Sep 02, 2014 | 2005 Jeep Wrangler X

2 Answers

2002 Kia Rio, sometimes it starts up fine. More and more often it sounds like the starter motor is spinning, but its not engaging. So it's not even attempting to turn over the engine. It's not a clicking,...


very good post, few like it.
this is the starter free spinning
the solenoids job is the engage the teeth the fly wheel (ring gear)

the pinon shaft in starter is dirty, clean it (easy fix)
bad starter solenoid. get a new starter , most solenoids cost more.
your suspisons are dead on.

Oct 12, 2013 | 2002 Kia Rio

1 Answer

I turn key and starter spin but will not engage flywheel.


You have one of two problems: Either the starter drive on your starter is defective and is not engaging the flywheel to crank the engine, or the flywheel has some broken or damaged teeth that are preventing the starter from engaging.
Starters come in a variety of designs. On some, the solenoid is mounted on top of the starter. When you turn the key, the solenoid routes current to the starter motor and at the same time pulls a lever that slides the drive gear mechanism out so it will engage the flywheel and crank the engine. If the solenoid is weak or damaged, it may not be strong enough to overcome the spring tension that retracts the drive gear. So the starter spins but doesn't crank the engine.
On other starters, the solenoid is mounted remotely. When the starter motor starts to spin, it ratchets out so the drive gear will engage the flywheel and crank the engine. If the drive mechanism is damaged or hung up, the motor may spin but not crank the engine.
Regardless of what type of starter you have, it will have to come out for further inspection. The drive gear (which is sometimes referred to as a "Bendix drive") should move out when the starter starts to spin. The drive gear usually has a one-way clutch that is supposed to protect the starter against damage if someone keeps cranking the engine once it starts. The gear should turn one way but not the other. If the gear is locked up or turns freely either way, the drive is bad and needs to be replaced. If the drive can't be replaced separately, you'll have to replace the entire starter.
Starter Testing If the drive seems okay, the starter should be "bench tested" using jumper cables or special equipment designed for this purpose.
CAUTION: Be careful because a starter develops a lot of torque. It should be held down with a strap or clamped in a vice (be careful not to crush or deform the housing!) before voltage is applied.
A simple no-load bench test can be performed with a battery and a pair of jumper cables to see if a starter motor will spin. But this test alone won't tell you if the starter is good or bad because a weak starter that lacks sufficient power to crank an engine at the proper speed (usually a minimum of 250 to 500 rpm) may still spin up to several thousand rpm when voltage is applied with no load.
A better method of determining a starter's condition is to have it tested on equipment that measures the starter's "amp draw." A good starter should normally draw a current of 60 to 150 amps, depending on the size or power rating of the starter. Some "high torque" GM starters may draw up to 250 amps, so refer to the OEM specifications to make sure the amp draw is within the acceptable range.
If the starter does not spin freely, or draws an unusually high or low number of amps, it is defective and replacement is required.
An unusually high current draw and low free turning speed typically indicate a shorted armature, grounded armature or field coils, or excessive friction within the starter itself (dirty, worn or binding bearings or bushings, a bent armature shaft or contact between the armature and field coils). The magnets in permanent magnet starters can sometimes break or separate from the housing and drag against the armature.
A starter that does not turn and draws a high current may have a ground in the terminal or field coils, or a frozen armature.
Failure to spin and zero current draw indicates an open field circuit, open armature coils, defective brushes or a defective solenoid.
Low free turning speed combined with a low current draw indicates high internal resistance (bad connections, bad brushes, open field coils or armature windings).

Jul 27, 2012 | 2005 Ford Taurus

1 Answer

Starter will not engage


If you hear the starter motor spinning freely without any load, then the engagement fork (sometimes called the Bendix mechanism) is not functioning, or you have broken teeth on the flywheel right at the starter gear. The starter solenoid does two things: it closes the high-current contacts between the battery cable and the motor, and it pulls on the fork that pushes a small spring-loaded gear into line with the flywheel. To narrow down the problem, first verify that the starter is properly mounted (bolts are not loose, missing or broken). If this is not the issue, then disconnect the ground cable from the battery and remove the starter. Inspect the starter gear and flywheel. If there is no apparent problem, connect the starter wiring (prop up the starter if necessary to avoid strain on the wires, but make sure the prop is sturdy enough to hold against the motor startup torque), reconnect the battery and have someone turn the key to start for a couple of seconds while you watch the starter gear. If it does not slide back and spin, you've found your problem. (You can also take the starter motor to a car parts store and ask them to test tt - this is not as awkward as testing using the vehicle wiring.)

Dec 13, 2011 | 2000 Plymouth Grand Voyager

1 Answer

Starter not catching flywheel


the starter is either not engaging or the bendix is shot. Bendix is the gear assembly that slides on the starter shaft. it should spin free in one direction and turn the starter in the other. and slide freely on the splines (in/out)

Apr 02, 2009 | 1986 Ford Bronco II

2 Answers

1995 Dodge Ram 1500 starter


You said it's a new start that was tested thoroughly, but just wanted to point out that if the drive mechanism is damaged or hung up, the motor may spin but not crank the engine. The drive gear should move out when the starter starts to spin, if it's locked up or turns freely either way, the drive is bad and needs to be replaced.

The other possibility is that the flywheel has some broken or damaged teeth that are preventing the starter from engaging. It may sound far fetched but there are really only a couple of reasons why the flywheel wouldn't be spinning, as a starter has a LOT of torque and shouldn't have any problem at all moving the flywheel.

Sep 21, 2008 | 1995 Dodge Ram

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