Ok so iv been having ac/heat problems. When on it blows the air out like brand new, but whenever i hit a bump or pothole etc. It turns on/off, but now its 90% of the time off. Btw i was having this problem before amd after putting my new engine in, old one blew due to family member being retarted n putting cold water in overheating radiator, cracked the block, so cant be a engine prob