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Fabian Meyer
Fabian Meyer, Kfz-Mechatroniker
Kategorie: Automobil
Zufriedene Kunden: 55
Erfahrung:  Staatl. gepr. Techniker für Kraftfahrzeugtechnik
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my friends volvo 2002 v70 is not starting but the starter works

Kundenfrage

my friends volvo 2002 v70 is not starting but the starter works but doesnt turns if i turn the key
Gepostet: vor 12 Jahren.
Kategorie: Automobil
Experte:  Fabian Meyer hat geantwortet vor 12 Jahren.
Some more information would be helpful.

Which engine? (diesel or gas, cubic capacity, rated power, etc)
Gearbox: automatic or manual?
Transmission: 4WD? 2WD?

Which part doesn't turn? Engine or starter?
How did you make sure, the starter is working?
Are there any unusual sounds?
Is the "check engine" lamp on or off?
What did your friend do the last time before it didn't start? Drive on the motorway, in the city, long route, short route, etc?
How's the weather? Cold, hot?

I need as much information as you can give.

With best regards
Kunde: hat geantwortet vor 12 Jahren.
hi the starter doesn t turn i checkt the starter.the starter works,i give power to the starter turns and cranks the engine.no sound.only if turn the ignition on i have one code trothel positions sensor.my friend parkt the car and next day in the morning no start.plus 5 celsius.tnx for help.and i m mechanic bat never hat the problem like this.
Kunde: hat geantwortet vor 12 Jahren.
hi the starter doesn t turn i checkt the starter.the starter works,i give power to the starter turns and cranks the engine.no sound.only if turn the ignition on i have one code trothel positions sensor.my friend parkt the car and next day in the morning no start.plus 5 celsius.tnx for help.and i m mechanic bat never hat the problem like this.

Verändert von Kunde am am 01.11.2009 um 23:18 Uhr
Experte:  Fabian Meyer hat geantwortet vor 12 Jahren.
Hi,

In some VOLVO vehicles produced from 2000 - 2002 there are problems with the throttle valves from the supplier Magneti Marelli (click). In CA, USA VOLVO made a callback for about 300.000 cars with these trottle valves.

The defect usually appears at about 80000 km - 120000 km (50000 miles - 75000 miles) of mileage.
Maybe in your friends case, the motronic disables the engine's start to prevent the engine from any further damage. Motronic is able to save data from the last drive, surroundings, conditions, defects, failures etc and recognizes, that there is a defect with the throttle valve and so disables the motor.

In german VOLVO workshops they first try to clean the throttle with a special cleaner, that cracks up the coking that causes the defect. This only gives help for a few thousands of kilometres - if it ever does.

The only durable solution is this:
Displace the part with a new one. Maybe you can find a used one in good condition. But consider, that the new one is produced by BOSCH and not by MagnetiMarelli. The BOSCH throttles had been improved and have been mounted in cars after manufacturing year 2002.

After changing the throttle you maybe have to delete the OBD's failure-memory and teach the Motronic the attempts of full-load, part-load and no-load of the throttle. Maybe, this step isn't necessary. Some brands do that automatically and some have to be taught. This has to be done in a VOLVO workshop.

And/Or - if you live in the US, give your VOLVO dealer a call and ask him, if your friends car is minded for the callback, too. With the car's FIN the VOLVO dealer will be able to see, if the car is one of the "callbacks".

I hope, my answer helps you getting rid of that problem.

With best regards
Fabian Meyer und weitere Experten für Automobil sind bereit, Ihnen zu helfen.
Kunde: hat geantwortet vor 12 Jahren.
yes but why the starter dosent turn.if i turn the key,automatic 2.4 gas with turbo i dont get power to grn/red wire i dont get power if i turn the key.i have power from battery to starter on the big wire but not on the small one,if i give power to the small wire the engine cranks but is not starting. and i have one more question on my mercedes 2001 ml 320 my abs esp ets and bas light is on c 1120 esp yaw rate sensor n/64 or sensor signal... c1401 high pressure/return pump.i change the brake light switch but still on if i delete the code and only c1120 code come back.and can you help me tnx.