I have a 2002 Chevy Venture with a 3.4L engine I believe. It is fully loaded with front and rear ac. It has 63K on it. Strangest thing happened. We drove it about 12 miles to an event yesterday during the daytime and no problems occurred. When we drove back home in the evening when it was dark, we noticed probably about 8-10 times over the 12 miles that the headlights blinked quickly ( they didn't go completely out they just blinked very very quickly) kind of like in your house when a lamp is on and someone turns an appliance on you get a quick dimming of the light and then it's back to normal. We also noticed it on the interior lights when they were on at the same time once. didn't notice it on any of the dashboard lights though. So when we got home I let it sit for about 5 minutes , did a visual on the battery connections which look okay from what I can see and also wiggled the alternator connectors a little bit. I then took it out for another drive for about 10 minutes and another 4-5 miles. This time I didn't see anything and I had all the lights on plus accessories( defrosters) and a/c. Any idea what this could be. Thanks for the help.

Hi...I was wondering if anyone knew of a step by step method of changing the ac high pressure switch on a 97 sebring jxi....any help would be great!