1999 Volvo S70

Asked by Jan 24, 2016 at 10:10 AM about the Volvo S70

Question type: Maintenance & Repair

My car exceleratates on its own when I turn it on. I
turn it off right away. Could it be the Mass Air Flow
Censer? Or what?

3 Answers

190

Throttle position sensor. With the car off have someone press the the gas while your looking under the hood. Look for the gas throttle cable coming from the gas pedal. Look see if there is any restriction that's keeping it locked up.

190

It may be a spring that's broke and not letting the pedal go back down.

1,155

Your ETM (electronic throttle module) could be the culprit. Although, the usual symptom is that the throttle will not work at all.

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