VATS, Passkey, & Passkey II – resistive chip ignition key The sections that follow will help you identify the system and describe how to do the relearn. How do you know what system your vehicle has? Just look at the keys (see page 4). Vehicle Anti-Theft System (VATS), Passkey, & Passkey II – resistive chip ignition key Unless these procedures are correctly performed the vehicle will not start after the PCM has been replaced. Crazy story really).GM vehicles have three types of Vehicle Thief Deterrent (VTD) systems, each requiring their own set of relearn procedures. Not to mention if a car problem were to happen this year, it would be a second time in as little as three years that the family car broke down while driving to our fishing spot (this time, it would our new car as the previous car's transmission died completely and we had to purchase the Equinox out of desperation. If you would be so kind, could you perhaps tell us if the 'sticky' valve solution truly fixes the problem later in the week? My Father would appreciate it greatly and in retrospect, myself as well, as our family will be taking our annual 1500km road trip to east coast for fishing and this would really be a hamper to our vacation. Regardless, it seems like you went through the same process and 'band aid' fix and it still had problems a couple of months later which is a little disconcerting. That being said, he has decided to return to the garage tomorrow and get the ignition wires replaced. The day after, the same problem surfaced again.Īfter further research on the internet, it seems like the likely cause is the ignition wires and arcing that can occur between spark plugs. Naturally, he decided not to take the dealer's asking price for repair and took his car to the garage he frequents and got the spark plugs replaced. The diagnosis alone cost about $100-150 and they wanted $850 (CAD) for replacement of the spark plugs, ignition wires, and cleaning of the fuel injector (ridiculous). He has already gone to the dealer and their diagnosis was, like yourself, that a couple of cylinders were misfiring (which seems to be a common problem around the internet for these vehicles). He bought it new, it now has 90,000 km (55,924 miles), and it also jerks/sputters/stutters when accelerating past 80km/h or 50mph. My Father has recently had this exact same problem with his 2007 Equinox. I would like to get an idea of A) what is really the cause of this problem and B) how difficult a DIY repair will be, as I'm not interested in giving the garage any more money at this point. Replacing spark plugs appears to have been a band aid on a gaping wound at this point, but it almost certainly will need to be done again before long. Now, two months and less than 3000 miles later, the same problem is starting to happen again. Not wanting to have to return to the garage any time soon, I agreed to have all of the spark plugs replaced. He removed this spark plug and showed it to me, and sure enough it was black and had actually cracked. He reported that all of the spark plugs had encountered some misfiring, but one in particular had misfired over a thousand times. Fuel injector cleaning did not fix this, so I took the car to the dealer. It happended at other speeds as well and it seemed to be related to accelerator position. 2 months ago, at 37743 miles, I encountered a problem with the engine sputtering when accelerating through 45-50 MPH.
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