My van has the V6 engine, and I don’t know much about the history because I bought it as a cheap second car when the transmission went out on my good car, but I did check it out before buying and it runs well otherwise and seems pretty decently maintained. It’s got a little over 53,000 miles. Maybe half the time I commute to work, after driving on the freeway for awhile (no set distance, although it seems to be after about 30 miles or so, today it was maybe 20) my van will start to jerk, feels similar to when you’re driving fast and quickly tap the clutch on a manual, and the windshield wipers will turn on just once, and the check engine light comes on. If you ignore the jerking, it starts becoming more frequent and violent, and is only resolved by pulling over and turning off the engine, then restarting and continuing on my way. The check engine light stays off after restarting, until whatever causing the issue happens again. Sometimes it doesn’t happen for the rest of the commute, sometimes it happens every 5-10 miles, and it’s always freeway driving, never in town, although, sometimes in town, you tap the brakes and the windshield wipers go just once. Googling turned up a case of a guy who says the same thing happened to him and he had to replace his ground straps to fix the issue. Between 2 years of auto shop in high school, Google and Youtube, and a Chilton’s manual, I can pretty much fix anything that doesn’t require tearing down the whole engine, but I cannot find anything in all those resources that will tell me where the ground straps are to change them out. Can anyone help me out with that?
Also, what other things could cause this nonsense, if it isn’t the ground straps? It’s annoying, and I already leave over 2 hours early for work to drive 80 miles on the 4 busiest highways in California; this isn’t making it any easier to get to work on time.