Welcome to DeMark Auto Inc.,
your car service in Caldwell, ID!
If you’re looking for auto repair in Caldwell, ID, you’ve found us. Here at DeMark Auto Inc. we work hard to earn your trust and loyalty. We know how important it is to find a Caldwell car service you can rely on, so your satisfaction is our top priority each and every day.
Here at DeMark Auto Inc. we understand what makes customer service truly outstanding. You will feel the difference exceptional customer care makes when you work with us. We know auto repair in Caldwell offers you lots of choices, and we aim to provide the kind of caring customer service that will bring you back.
Our professional automotive service offers you years of combined expertise from our well-trained technicians. We treat our auto repair professionals well because we value their skill and can-do attitude. We know our team sets us apart, saving you time and money, not to mention worry. When it comes to auto repair in Caldwell, we are totally confident that DeMark Auto Inc. is the best option in town!
Address
DeMark Auto Inc.
603 Hannibal St
Caldwell, ID 83605
(208) 459-3468
Shop Hours
Mon-Fri: 8:30am-5pm
Sat-Sun: Closed
Directions
Payment Types
Affiliates & Certifications
About DeMark Auto Inc. Caldwell, ID
For years DeMark Auto Inc. has been there for the people of Caldwell. We love what we do, and that basic fact fuels our business. We are dedicated to our customers, and that’s why they stick with us—the best auto repair Caldwell has to offer.
Our family of technicians and service staff sees their work here at DeMark Auto Inc. as more than a job. It’s their vocation and livelihood. Each member of our team is invested in your satisfaction.
DeMark Auto Inc. was founded on the basic idea that everyone deserves respect. It is our mission to treat each person that comes through our door with dignity and sensitivity. We believe this attention to detail has paid off by providing us with our loyal, friendly family of customers. That’s what makes DeMark Auto Inc. the best car service in Caldwell!
Are you ready to experience the best Caldwell car service available? Please give us a call or make an appointment here.
The Absolute Best Car Service in Caldwell, ID
What sets DeMark Auto Inc. apart from all of the others in Caldwell, ID?
Trust: When it comes to auto repair in Caldwell, ID, it’s all about earning loyalty and trust by doing our very best every day. We are determined to earn and keep your trust.
Talent: At DeMark Auto Inc., you can rest easy knowing that our highly-skilled, experienced auto service professionals are handling your car. Our technicians bring years of experience, skill, and education to the Caldwell auto repair table.
Time: We take the time we need to provide you with top quality car service in Caldwell, ID, and we take the time to talk to you about what that means. We listen to you so we understand your needs and goals for your auto repair.
Recently Serviced Vehicles
2004 Hyundai Elantra
Mileage207,767Service Date11/13/2025Services Performed- PERFORMED 25 POINT INSPECTION
- Vehicle had stored codes P0301, P0303, and P0300. Spark plugs were loose and had carbon tracking on them. Recommend replacing spark plugs and wires and rechecking.
- CARD FEE
HAILEE C. gave our service a 5 star review on 11/13/20252013 Chevrolet Tahoe
Mileage123,207Service Date10/21/2025Services Performed- PERFORMED 25 POINT INSPECTION
- No codes stored in ecm or tcm. B0413, B0423 and B0228 stored in hvac module. Test drove vehicle and noticed transmission slips, shudders and occasionally shifts hard. Transmission fluid is full. Another shop recently serviced the transmission and said there was clutch material in the fluid.
- HEADLAMP ASSEMBLY (COMPLETE) – Remove & Replace – LS,LT,LTZ,PPV,SSV One Side – [DOES NOT include adjust Headlamps.]
- CHANGE OIL AND FILTER- Includes inspect all fluids, and grease all zerks
- Remove and clean terminals apply anti corrosive
- DISC ROTOR – Remove & Replace – Front,Both – [Includes: Replace Pads (if necessary). DOES NOT include refinishing.]
- CARD FEE
MIKE S. gave our service a 5 star review on 10/21/20252015 Ford Explorer
Mileage82,771Service Date9/22/2025Services Performed- PERFORMED 25 POINT INSPECTION
- CHANGE OIL AND FILTER- Includes inspect all fluids, and grease all zerks
- Refer to JIM'S UPHOLSTERY 208-466-7233
ANDREW D. gave our service a 5 star review on 9/23/20252013 Ford F-150
Mileage246,067Service Date9/12/2025Services Performed- P0035 TURBO BYPASS VALVE A CONTROL CIRCUIT HIGH P0722 OUTPUT SHAFT SPEED SENSOR CIRCUIT NO SIGNAL Test drove vehicle and output shaft speed sensor is working at this time. Turbo bypass valve is not working. Verified power to bypass valve and pcm commanded ground. Turbo bypass valve connector was not fully seated. Seated electrical connector and Turbo bypass valve is now working properly. There is a TSB (16-0008) for code p0722 indicating the lead frame is a known issue. Recommend replacing lead frame in transmission.
PATRICK H. gave our service a 5 star review on 9/12/20252014 Dodge Dart
Mileage200,008Service Date9/4/2025Services Performed- Pressure tested vehicle , found vehicle slowly losing pressure. Found heater hoses seeping near firewall. Warranty hoses and recheck.
- HEATER HOSES – Remove & Replace – One,Hose – [NOTE: Deduct 0.2 when used in conjunction with Radiator Hose(s) – R&R.]
RAUL D. gave our service a 5 star review on 9/9/20252018 Ford Transit-250
Mileage155,499Service Date9/2/2025Services Performed- PERFORMED 25 POINT INSPECTION
- Found turbo coolant pipes leaking on drivers side. Recommend replacing pipes and fittings for coolant.
- Exhaust manifolds leaking both sides. Has broken studs. Drivers is the worst. Recommend replacing exhaust manifolds and extracting broken studs.
- Has stored codes p0218 p0219 and p1783. Found transmission fluid burnt and over full. Recommend servicing transmission but would warn that it may make problem worse and transmission my need to be replaced.
- EXTRACTION
- EXHAUST MANIFOLD – Remove & Replace – 3.5L Eng Both
- TRANSMISSION ASSEMBLY – Remove & Replace – 3.5L Eng
- TRANSMISSION OIL COOLER – Remove & Replace
HEATING E. gave our service a 5 star review on 9/8/20252016 Honda CR-V
Mileage91,172Service Date8/29/2025Services Performed- PERFORMED 25 POINT INSPECTION
- No codes stored. Engine runs perfect. Engine mounts are worn causing a roughness felt inside the vehicle. Found transmission mount to have excessive wear.
- Spark plugs look ok right now. Tune up due @ 100k miles.
- Remove and clean terminals apply anti corrosive
TROY L. gave our service a 5 star review on 8/29/20252016 Ford F-150
Mileage117,650Service Date8/21/2025Services Performed- PERFORMED 25 POINT INSPECTION
- Park brake assist module shows code B1B46:14 which indicates a short to ground or power on the RR inner proximity sensor. Checked connections on the 4 rear sensors and found 1 of 3 wires to connector broken. Replace RR proximity sensor. Picture of damaged connector is on the inspection under miscellaneous.
- LF flexible hose to caliper is split wide open. Picture on inspection.
- PARKING AID SENSOR – Remove & Replace – Rear,One – [DOES NOT include refinishing (where applicable).]
- A/C COMPRESSOR DRIVE BELT – Remove & Replace – 3.5L Eng,Turbocharger – [Includes: R&I Alternator Belt.]
- BRAKE HOSE – Remove & Replace – One – [Includes: Bleed Brake System.]
- DISC ROTOR – Remove & Replace – Rear,Both,w/ Manually Operated parking brake – [Includes: Repack Wheel Bearings (where applicable) and replace Pads (if necessary). DOES NOT include refinishing.]
- SHOCK &/OR STRUT ASSEMBLY – Remove & Install or Remove & Replace – Both – [DOES NOT include disassemble or alignment.]
- TIRE ROTATION
TAMMY H. gave our service a 5 star review on 8/22/20252013 Ford F-150
Mileage58,707Service Date7/31/2025Services Performed- PERFORMED 25 POINT INSPECTION
- No codes stored in any module. Found 5/8 readiness monitors incomplete. Test drove vehicle and could not duplicate customer concern. After test drive 4/8 monitors incomplete. Recommend driving vehicle more to try to duplicate concern and potentially setting codes.
GARLAND L. gave our service a 5 star review on 8/14/20252013 Ford F-150
Mileage119,299Service Date7/30/2025Services Performed- PERFORMED 25 POINT INSPECTION
- CHANGE OIL AND FILTER- Includes inspect all fluids, and grease all zerks
- Performed Brake fluid Service
- TIRE ROTATION
KIM B. gave our service a 5 star review on 7/31/20252014 Ford F-150
Mileage155,119Service Date7/22/2025Services Performed- CHANGE OIL AND FILTER- Includes inspect all fluids, and grease all zerks
HERMAN M. gave our service a 5 star review on 7/30/20252007 GMC Sierra
Mileage113,360Service Date7/24/2025Services Performed- PERFORMED 25 POINT INSPECTION
- Front brakes are between 1mm and 4mm on the pads and rotors are below specifications.
- BRAKE FLUID SERVICE
- DISC ROTOR – Remove & Replace – 1500,2500 HD Front,Both – [Includes: Repack Wheel Bearings (where applicable) and replace Pads (if necessary). DOES NOT include refinishing.]
- TIRE ROTATION
RON B. gave our service a 5 star review on 7/24/2025
