Diesel Repair and Service in Cypress, TX
Skeeter’s Auto Service repairs and maintains diesel trucks for drivers across Cypress and Northwest Houston from our shop at 12133 Old Huffmeister Rd, Cypress, TX 77429. If your truck is hard to start on a cool morning, pushing black or white smoke, losing power under a trailer, or lighting up the dash with a DEF or DPF warning, bring it in. Our diesel technicians work on Ford Power Stroke, Ram Cummins, and Chevy and GMC Duramax trucks every day, and we have the bay space and lift capacity to take work trucks up to an F-550.
We have been fixing cars and trucks in this part of Harris County since 1992. Diesel is not a sideline for us. It is one of the two things the shop is built around, and every diesel repair we do is backed by the same 36-month / 36,000-mile nationwide warranty as the rest of our work.
Signs Your Diesel Needs a Shop
Diesels usually warn you before they leave you on the shoulder of US-290. Any one of these is worth a diagnostic visit before it turns into an injector set or a turbo:
- Hard starting or long crank times, especially first thing in the morning
- Black smoke under acceleration, white smoke at idle, or blue smoke at any time
- Loss of power when towing or climbing, or a truck that feels flat off the line
- Rough idle, misfire, or a knock that was not there last month
- Fuel economy that has dropped without a change in how you drive
- Coolant loss, overheating in traffic, or a sweet smell after a drive
- Check engine light, glow plug light, or a DEF, DPF, or regeneration message on the dash
- Oil on the driveway, fuel in the oil, or oil in the coolant
Call 281-469-1152 or book online and we will start with a diagnosis, not a parts list.
How We Diagnose a Diesel
A diesel that runs poorly can have five different causes that all look the same from the driver’s seat, so we test before we quote. Our diesel diagnostic work in Cypress includes:
- Full scan of the engine and emissions controllers, including stored, pending, and history codes
- Live data review of fuel rail pressure, injector balance rates, boost, EGT, and regeneration history
- Fuel system testing: lift pump and high-pressure pump output, filter condition, water and contamination checks
- Turbo inspection for shaft play, boost leaks, and sticking variable-geometry vanes
- Cooling system pressure test and EGR cooler check, the two places Texas heat shows up first
- Glow plug, grid heater, and starting circuit tests for cold-start complaints
- Emissions system review: DPF soot load, DEF quality and dosing, and sensor health
You get the findings and a written estimate before any repair starts. If the problem is a warning light on a gas vehicle rather than a diesel, our car diagnostics page covers that side of the shop.
Diesel Services We Perform
From a fuel filter to a complete engine, the work stays in-house. Common diesel repairs and services at Skeeter’s include:
- Fuel injector testing, replacement, and injector cup or seal repair
- High-pressure fuel pump and lift pump replacement
- Turbocharger repair and replacement, including VGT actuator faults
- EGR valve and EGR cooler service
- DPF, DEF, and emissions system diagnosis and repair
- Glow plug and grid heater replacement
- Head gasket, oil cooler, and coolant leak repair
- Water pump, radiator, and thermostat replacement
- Diesel oil and filter changes with the correct diesel-rated oil
- Fuel filter and water separator service
- Air filter, belt, and hose replacement
- Transmission, transfer case, and differential fluid service for trucks that tow
- Diesel exhaust and muffler repair
- Complete diesel engine replacement or rebuild
Preventive work is scheduled around how the truck is used. A ranch truck that idles for hours and a commuter that sees the 99 every day do not need the same intervals, and we set the plan to the truck, not to a chart.
Power Stroke, Cummins, and Duramax
Each of the three big diesel platforms has a personality, and we keep a page for each one with the generation-by-generation issues we see in this area:
- Power Stroke repair for Ford Super Duty and F-Series trucks, from the 7.3L through the 6.0L, 6.4L, and current 6.7L, including HPOP, EGR cooler, and head gasket work
- Cummins repair for Ram 2500 and 3500 trucks, 5.9L and 6.7L, including injector, lift pump, and turbo service
- Duramax repair for Chevy Silverado and GMC Sierra HD trucks, LB7 through L5P, including injector, cooling, and Allison transmission service
We also service other diesel engines, including diesel vans and light commercial trucks. If you are not sure which platform you have, the model year and badge on the fender are enough for us to know where to start.
Diesel Performance, Tuning, and Exhaust
Performance work at Skeeter’s is about matching the truck to the job. If you tow a fifth wheel or run a loaded trailer through the Hill Country, we can help with turbocharger upgrades, high-flow exhaust systems, injector replacements or upgrades, and ECU tuning for the torque and fuel economy you actually want. We build the setup around your use, and we will tell you plainly when a modification is not worth the money for the way you drive.
Fleet and Work Truck Service
A truck in the shop is a truck not earning. For Cypress businesses running one pickup or a dozen, our fleet program is built around uptime:
- Diesel service capacity up to F-550, with enough bays to turn trucks around quickly
- Priority scheduling for fleet accounts
- Secure after-hours key drop and pick-up with a lockbox
- Complete service records for every unit in the fleet
- Preventive maintenance programs to cut surprise breakdowns
- A fleet charge account through CB Charge to simplify billing
Landscapers, contractors, delivery operators, and service companies across Northwest Houston keep their trucks on our schedule. Call 281-469-1152 and ask for fleet service.
Diesel Trucks in Texas Heat
Cypress summers are hard on a diesel in two places: the cooling system and the cabin. A tow rig that runs warm in traffic on 290 usually has a tired radiator, a clogged EGR cooler, or a fan clutch that is not pulling its weight, and we pressure-test and inspect the whole system rather than topping off coolant. If the truck’s air conditioning is not keeping up, our car AC repair service covers diesel trucks as well as cars, and a complimentary A/C system check is on our specials page while it runs.
Diesel Engine Replacement
Most shops stop short of a complete engine. We do not. When a diesel has suffered a catastrophic failure, or a high-mileage truck is worth keeping but the engine is not, our technicians perform complete diesel engine replacements and rebuilds in-house. We walk you through the options, the cost of each, and the realistic life you can expect from the truck afterward, so the decision is yours with the full picture. Our engine repair page covers the gas side of the same work.
Why Cypress Diesel Owners Choose Skeeter’s
- Diesel is a specialty, not a sideline. Power Stroke, Cummins, and Duramax trucks are in our bays every day.
- 36-month / 36,000-mile nationwide warranty on our repairs, so the work is covered wherever the truck goes.
- Family owned since 1992. Skeeter bought the shop on Old Huffmeister in 1992, and his family runs it today. Read our story.
- ASE-certified technicians with modern diesel diagnostic equipment.
- Digital inspection with photos and video sent to your phone, so you see what we found before approving any work.
- Courtesy shuttle during business hours, ride share, 24/7 towing, and secure after-hours key drop and pick-up, so getting the truck to us fits around a work day.
- Exterior car wash with every service. Your truck leaves cleaner than it arrived.
- Financing available through Synchrony Car Care and American First Finance for larger repairs.
- Second opinions welcome. If you have a written estimate from another shop, bring it in. Current offers are on our specials page.
See what your neighbors say on our reviews page.
Serving Cypress and Northwest Houston
We are on Old Huffmeister Rd in the 77429, a few minutes north of US-290 off Huffmeister Rd. Diesel owners come to us from across Cypress, including Coles Crossing, Ravensway, and Tower Oaks, as well as Bridgeland, Fairfield, Towne Lake, Copperfield, Jersey Village, and the 77433 side of town. If you have been searching for a diesel mechanic near me or a diesel shop near me from anywhere in Northwest Houston, Tomball, or Spring, we are a short drive and we can arrange pick-up for fleet vehicles.
Diesel Repair FAQs
Do you work on all diesel trucks, or only Power Stroke, Cummins, and Duramax?
Those three are the bulk of what we see and the platforms we know best, but we service other diesel engines as well, including diesel vans and light commercial trucks. Call with the year and model and we will tell you straight away.
How much does a diesel diagnostic cost in Cypress?
Our $99 Diagnostic Special covers check engine light diagnosis on most trucks; advanced electrical testing and teardown are quoted separately before we start. Every diagnosis includes a digital inspection with photos and video sent to your phone. The diagnosis produces a written estimate, so you know the full cost of the repair before you approve it.
My truck is hard to start in the morning. Is that the glow plugs?
Often, but not always. Hard cold starts on a diesel can come from glow plugs or the grid heater, low fuel pressure, worn injectors, or a weak battery. We test the starting and fuel systems together rather than guessing, because replacing glow plugs on a truck with an injector problem fixes nothing.
Can you fix a DPF or DEF warning, or do I need the dealer?
We diagnose and repair DPF, DEF, and EGR faults on Power Stroke, Cummins, and Duramax trucks in-house, including forced regenerations, DEF quality and dosing problems, and sensor replacement. You do not need the dealer for emissions system work.
How often should a diesel get its fuel filter changed?
Most trucks are due every 10,000 to 15,000 miles, and sooner if you fuel at a lot of different stations or the truck sits. Water and contamination in diesel fuel is the fastest way to ruin an injector set, so we treat the fuel filter as the cheapest insurance on the truck.
Do you handle fleet vehicles and work trucks?
Yes. We service diesels up to F-550, keep records per unit, offer priority scheduling and after-hours drop-off and pick-up, and can set up a fleet charge account. See the fleet section above or call and ask for fleet service.
Is diesel repair at Skeeter’s covered by a warranty?
Yes. Repairs at Skeeter’s Auto Service carry a 36-month / 36,000-mile nationwide warranty.
Is there a diesel shop near me that also does the rest of the truck?
If you are in Cypress or Northwest Houston, yes. Along with diesel engine work we handle brakes, steering and suspension, alignment, AC, and oil changes on the same visit, so a work truck does not need two shops.
Schedule Diesel Repair in Cypress, TX
Call 281-469-1152 or book an appointment online. Skeeter’s Auto Service is at 12133 Old Huffmeister Rd, Cypress, TX 77429, open Monday through Friday, 7:00am to 5:00pm, with secure after-hours drop-off and pick-up. Family owned since 1992, and every diesel repair is backed by our 36-month / 36,000-mile nationwide warranty.