My son has the car listed above it has a 3.4(oddball) V-6. Sometimes the rpm's race way up, drops to normal, or below normal then stalls. What could cause this? I have sprayed cleaner on the mass air flow sensor. The thermostat has been changed. Today it raced up to 4000 rpm's. Any help would be greatly appreciated.
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Sunday, August 6th, 2017 AT 7:13 AM