Grain Valley Auto Repair

Drew’s Diesel is the most honest shop around. They are more than just diesel mechanics. I’ve been taking all of my vehicles to Andy no matter what shop he worked for. I recommend Drew’s Diesel to everyone I know.

Been dealing with Drew's for several months. A few of our vehicles had reoccurring issues, and a couple other shops could not get the problems fixed perm. Drew's did, the first time. Andy is our point of contact, and I want to say that the courtesy and professionalism we get from Drew's is outstanding. I'd recommend them to anyone.

Great service! Fast , Save me money on parts. Great shop.

Absolutely wonderful, knowledgeable, and honest!

Excellent service, great shop

With all the good reviews, I figured I’d give this guy a chance for my first upgrade (FASS). Was not disappointed. Seems like a great guy. Looked over the installation when I got home and all was well. No kinks in the hoses, no leaking fuel, just done the way it should be. He also noticed another issue, pinion seal and informed me of the issue and noted my warranty would cover it. Helpful info from a mechanic. Will be going back for sure for all future upgrades and problems.

I have a 1999 24v Cummins. I brought it to Drews for an electrical issue. After reading the codes it appeared it was 2 things had gone bad. After getting it back the issue came right back. I had to take it back BUT the actual issue was found and the problem was fixed at no extra charge. Not what one would expect from a mechanic. Couldn't be happier. If I have issues again I'll definitely go back. Good people!!!

Alway does a great job! Backs up his work if needed. Friendly atmosphere!!

Most knowledgeable Diesel Mechanic I've ever met!