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Diesel Dr. Diagnostics

4.7

About this business

Diesel Dr. Diagnostics provides professional ECM tuning, full tilts and turbos to Effingham, IL. 

Location details

1507 W Fayette Ave, Effingham, IL, 62401, United States

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WeekdayScheduleStatus
MonClosed
Tue9:00 a.m. to 5:00 p.m.
Wed9:00 a.m. to 5:00 p.m.
Thu9:00 a.m. to 5:00 p.m.
Fri9:00 a.m. to 5:00 p.m.
Sat9:00 a.m. to 5:00 p.m.
SunClosed
4.7349 reviews
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Donald Cheek's profile image
Donald Cheek 
recommend  Recommended
5 years ago

Just had a Paccar HP Upgrade completed and I'm very impressed with the difference. But only got to try it out for 45 miles and my day is done. The guys there are very professional and do an outstanding job. Thank you. 

Jason Brouwer's profile image
Jason Brouwer 
recommend  Recommended
6 years ago

Honest, Straight Forward, No B.S. approach to things. Took my under the weather ‘14 Cummins in there and they got her fixed right up. Up about 1.25mpg over what it was doing. Running cooler and pulling better too. Very happy with my experience. 

Robert Sztorc's profile image
Robert Sztorc 
recommend  Recommended
6 years ago

Excellent Serivce fair priced over all great ppl! Set everything like requested 

Jaggi Chahal's profile image
Jaggi Chahal 
recommend  Recommended
6 years ago

Just had custom tuning done by them, had it set to 600hp and 2050tq for now until i get my pyro temp gauge, and man it feels like a different truck, its a beast! and gained almost 1mpg no joke! 

Teresa Ervin Palmer's profile image
Teresa Ervin Palmer 
6 years ago
Dan Barnes's profile image
Dan Barnes 
7 years ago

I have had two trucks turned up and tuned and I especially liked the last tune on my 96 w900 5ek cat to 601 hp and 2049lbs of torque the guys are very nice and helpful !! 

Johnathan West's profile image
Johnathan West 
7 years ago

2003 Peterbilt 379/C-15 Cat 6NZ. Went in to see about getting better fuel mileage, prior company truck so you can imagine how jacked up it was. They turned HP up from 475 to 550, turned the torque up from 1,650/1,750 split to 1,850 and opened injectors up. Before Diesel Doctor: NEVER saw 6 mpg. High 4 to high 5 loaded and empty. After Deisel Doctor: 6.5 loaded and 7.2 empty. Not to mention no more downshifting on small hills and pulls bigger hills excellent. It's only been 4 days since the visit but that is what I see so far... read more

Business response:

Awsome man, thanks 

Jim Loffmark's profile image
Jim Loffmark 
7 years ago
Allen Lawson's profile image
Allen Lawson 
7 years ago

Great service and very helpfull. Always willing to help. 

Frequently asked questions about Diesel Dr. Diagnostics

How is Diesel Dr. Diagnostics rated?

Diesel Dr. Diagnostics has a 4.7 star rating with 349 reviews. 

When is Diesel Dr. Diagnostics open?

Diesel Dr. Diagnostics is closed now. It will open at 9:00 a.m. 

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