Slow or No Crank Starter Motor Solved - Bad Ground Wire Test Warning - Don't Check Via The Casing

Whilst diagnosing a faulty starter, I noticed a lot of people only test ground current draw on the case of the starter motor, which showed no fault, as there was a fault from the ground wire on the starter to the case itself.

Fitted another new starter, cranked over fast and fired straight up. 👌

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Disclaimer
*Some scenes were filmed on private land with permission.
*Some scenes are edited and maybe sped up for dramatic effect.
*Always drive well within the limit of your ability.

[darralpphillips]

Thanks for the short simple video and explanation. Straight to the point.

[ballsack]

Your a very clever bloke, thank you mate 😊

[hossenahmed]

i cant thank you enough and you cant imagine how much you have helped really thnk you

[ThuyNguyen-vclx]

It shows that a slow crank the majority of times it’s in your wires anywhere between the battery and the cranking motor. There are solenoids relays and fuses that are all connected by visible wires, that need to be tested with your multimeter. Any faulty wire can cause a slow crank.

[michaelrichardson]

Great Debate from BOTH SIDES as Anything Technically is my Cryponite in LIFE as freezes me like deer in the headlights syndrome....

[kalamatianos]

thanks for th video mate.i had the same problem on a bmw f 800gs with a new i saw your video i just cleaned the connection of the negative ground cable of the starter and magicly problem had 0.7 volts on startup.now it is 10+ and starts immediatelly

[gc]

My slow crank issue on a 2000 5.4 expedition was from the brake sensor wire melted to the exhaust manifold...

[tapiwarwizi]

the solenoid is actuated by 12v + not a neg wire. the starter is ground because of the engine.

[theshirehighlander]

Thank you very much man. This is exactly what was wrong with my Motorcycle.

[vcmdpropulsion]

its not a grounding wire, its + from the solenoid that comes from the battery. the case of the starter is ground. so if there is a bad connection from ground on the engine block to - on the battery it will slow roll

[perez-gaara]

Did you at (1:52) connect probe to terminal post or the wire connected to the terminal.

mine goes to 10.2v or i think it was 1.2v

like what you shown. New battery and new starter cranks slow & only cranks with fuel pump fuse out, if i put it back it just clicks

[abimariavargas]

Is that a ground cable or positive cable coming from solenoid

[nolovelost]

I have this slow crank issue after driving for a bit as if the battery hasnt been charged properly. However if it sits for an hour or even overnight it cranks fast with no issue as if the strater gets hot and becomes weak and cools down which than results in it cranking with no issue. Just a theory of mine. Anyway Ive tested the alternator its reading great and charging properly and tested the battery and its also fine. Could it be what you demonstrated here?

[furkanislek]

Merhaba benim aracım opel vectra 1.9 cdti z19dth motor. Benim aracımın sorunu geç çalışıyor. İki veya üç kere marş tekrarı yapıyorum. Araç 2. Marşta başlatmada çalışıyor. Enjektör sağlam, kızdırma bujileri sağlam sizce sorun nedir ? Hava sıcaklığı 20 derece olsa bile çalışmakta zorlanıyor. Marş motoruda sağlam akü, pilde sağlam

[dirtbiker]

I have a question, i have a slow crank issue and a mechanic told me that the rotor(where the brushes contact the whole inside thing) was worn out and it really is kind of worn out.Any ideas what cloud the problem be.I havent done any testing yet

[mark.r]

Hi, would a bad starter cause a sudden stall at a red light? And cranks but no start afterwards? Thanks

[scotthoward]

The insulation on the link wire looked damaged perhaps it was dropped and crushef it

[rayman]

So if we change the starter, problem will be solved?

[altezzabmw]

How many volts is the normal voltage drop?

[drippy]

I had this exact issue. I bought a brand new starter and replaced it. It made the same exact noise and still won’t start