I have a brand new 07 2 wd and was wandering if someone has the same problem I do. When the engine is cold, the voltmeter drops below 14 inside the cab, the lights dim and the engine slows down. Again, this appears to only happen when the engine is not warmed up and I am at idle. Does or has anyone else observed this problem also? Thanks in advance, Rico

 

its normal. thats the grid heater going thru its cycle. i believe it stops if you go above 15 mph or it warms up enough

brett