Question about 2003 Volkswagen Jetta TDI

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2003 jetta 1.8 turbo: while driving down the block, motor quit and we went for the curb. Now the starter seems to spin but the solenoid is not engaging, no start. Lights work, power windows, radio etc. Good battery in car. What could it be??

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  • racer22 Mar 20, 2011

    could it be a timing belt which would cause the motor to stop while driving, and the starter to spin the motor without resistance.

    Also would a broken belt bend some of the valves? The car is still in the street and I have not had a chance to even open the hood yet. I will check if the crank pulley spins, that would confirm the belt idea.

  • racer22 Mar 20, 2011

    I have checked the pulley up front when cranking, and the serpentine belt is rotating the alternator etc. The engine is spinning very freely, without any resistance, which is why I originally thought the starter was at fault. The only other option must be a broken timing belt.
    Thanks for your hrlp

    Henry Wilko

  • racer22 Mar 20, 2011

    Thanks for your help. I have a 2000hp Hemi drag race door slammer that runs 200 mph in the quarter, and I just do not need this at the start of the season. Not interested in fixing it myself, even though I have done this job on other cars I have owned. The car is in the gas station now for repair. Lets see what happens.
    Hank Wilko



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The starter spins but the solenoid is not engaging.Its a starter faulty.Either the solenoid or starter motor is faulty.The whole starter has to be replaced.Remove the starter and clean it and lube it with starter grease, its available at auto-part store.Its called car grease.Apply it in the starter and let it remain for few minutes then try again.If still the starter solenoid not engaging then , the starter has to be replaced. ------------- Also try this:----- Tap firmly on the body of the starter with a small hammer while an assistant attempts to crank the engine. If the starter engages, then you have a faulty starter. If the starter doesn't engage, try turning the crank with a pull bar and socket, if the engine will turn, check the flywheel for missing or damages teeth. If there is no damage to the flywheel, replace your starter. If the flywheel is damaged, replace your starter and flywheel. ------------ In most of the cases its faulty starter solenoid and starter has to be replaced.This will solve the problem.but in some cases the flywheel teeth also gets worn out, with solenoid and both the flywheel and starter has to be replaced.---------
This will help.thanks.Helpmech.

Posted on Mar 20, 2011

  • raj somaiya Mar 20, 2011

    Yes checking the crank pulley will confirm the belt issue.But if motor spinning and starter solenoid not getting engaged, then this indicates towards worn out solenoid or jammed solenoid or flywheel teeth worn out.

    But still there are rare chances that belt is out of line or loose or cracked causing this.Getting crank pulley checked will confirm that issue also.--------- Click this link for more help.----------


    This should help.Thanks.Helpmech.

  • raj somaiya Mar 20, 2011

    yes very correct.If the starter is checked ok and serpentine belt is rotating then its worn out timing belt or broken belt.Many a times belt gets loose/ over stretched instead of breaking.In any case the belt needs to be replaced.--------- Thanks for the update.Thanks.Helpmech.



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