GMC - Savana :: 2004 - Engine Shuts Off While Driving At 75mph
Jun 12, 2014
Was driving vehicle on highway at 75mph (speed limit) and the engine cut off. Just prior to this event, the vehicle was acting sluggish when stepping on the gas pedal. It took the vehicle from 5-10 seconds to respond to the acceleration requests.
Up until this point, the vehicle would work normally except for the transmission, (we've always had a problem with this from day 1), the GMC mechanics said they even took the trany apart and put it back together and couldn't find any issues. The transmission, when moving from a stopped position will not engage into gear for several seconds (4s - 7s) and when it does, the van pops into gear, jerking the van.
Vehicle: 2004 GMC Savana 1500 passenger Van
Mileage: 105,000
History: has had regular oil changes/tuneups
Primary Issue: Engine shut off while driving at 75mph
Secondary Issue: Tranny pops into gear after delay from stopped position (from park to drive or park to reverse)
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This morning I realized that there is a pattern to our Prius incidents. What Sarah experienced last week is the same that Amy experienced when she drove the car the first day we bought it.
1. January: Amy had driven 20 highway miles with no problem. Park for 10 minutes. Started and crossed to the median of a two-lane Highway. stopped to wait. When tried to go, nothing. Will not move. 10 minutes later tried again and car worked fine for a long time after that.
1a. The car still had the original auxiliary battery. tested and found 12V battery weak. Replaced original battery with Duracell AGM vented battery for Prius. Car drove fine for weeks after this.
2. May: car sat all day. Turn on. Drove across parking lot. then noticed red triangle, VSC, brake warning lights all on. Lots of codes including high-voltage battery, transmission, and others.
3. drove fine for one week. Then going 60 miles per hour up a slight hill. heard the internal combustion engine shutdown. Red triangle, VSC, brake warning light came on. Reduced or no power steering or brakes. Coasted off the road. After 10 minutes, it drove fine again.
3a. I cleaned high voltage battery cooling fan. Drove fine for 10 days.
4. June: Sarah drove 10 minutes. Drove to stop sign. Had to wait 5 minutes for lots of traffic. When ready to pull out, push the accelerator, internal combustion engine shut down and the car would not move. Would not go into reverse. Put in neutral, and enough slope to roll backward to side of road. waited a few minutes, and it drove fine again.
Codes WERE P0A0F engine failed to start and c1300 anti-lock brake. the same codes were thrown in the previous incident. Noticed engine coolant a little low and added more.
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