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Ask Chad Farhat Your Own Question
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 3969
Experience:  Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles
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My 92 benz 500sl stop while driving sometimes but start

Customer Question

my 92 benz 500sl stop while driving sometimes but start right back up what wrong and can i fix this
JA: Will the headlights turn on? Is the battery fully charged?
Customer: i think so and the battery is good
JA: Are you fixing your 500SL yourself? What have you tried so far?
Customer: no, nothing
JA: Anything else you want the mechanic to know before I connect you?
Customer: not really i heard it might be a fuel pump relay
Submitted: 11 months ago.
Category: Mercedes
Expert:  Chad Farhat replied 11 months ago.

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Expert:  Chad Farhat replied 11 months ago.

hey how are you

1-The crankshaft position sensor is located at the left rear of the crankcase.

2-you need to have it scanned with a star Mercedes scanner to retrieve fault codes from the car computer

3-the ckp is common failure but testing is needed

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

Expert:  Chad Farhat replied 11 months ago.

we need fuel & spark to stay running ,so we loosing one or both .

usual ckp causes you to loose spark & when cycle switch from on to ff back to start it resets

Please let me know if you need anything else on it, just reply back and we will continue

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Thank You
Chad Farhat
ASE Certified Technician