I have a 1990 F350 that I bought about a year ago and had nothing but problems with it. I have a few of these trucks and am usually able to fix them for the most part.   One day I had no power at all and I couldn't figure it out. I took it in to Precision and they had it fixed within a couple of days. Now the truck runs better than it ever has and I am really happy with the service. I have used Precision a few times and have always had great service. Mike the customer service rep is very knowledgeable and keeps you updated and informed. The prices are pretty good too.  I highly recommend this place and I believe this is the best place in Manteca. - JW Z (5 star review found on Yelp)