# Diesel Turbo Oil Line Repair in Upland > Oil dripping near the turbo or a burning oil smell? Route 66 Auto Repair in Upland repairs diesel turbo oil feed and drain lines and checks the turbo too. Source: https://route66autorepairshop.com/diesel-engine-services/diesel-turbo-oil-line-repair Updated: 2026-09-17 Business: Route 66 Auto Repair, 1775 W Foothill Blvd, Upland, CA 91786, (909) 608-7699 Hours: Monday to Friday 8 AM–5 PM, Saturday 8 AM–2 PM, Sunday closed **TLDR:** Turbo oil lines **feed and drain** the bearings. We fix leaks and blockages and check the **turbo for damage** at the same time. Turbo oil lines carry pressurized oil to the turbocharger's bearings and drain it back to the pan. Route 66 Auto Repair in Upland repairs leaking or restricted diesel turbo oil feed and drain lines on pickups and vans. A leak here drips onto hot exhaust and smells like burning oil. A blocked line can ruin a turbo in minutes. Our ASE-certified technicians inspect both lines and the turbo, and put the repair in a written estimate. ## What are the signs of a turbo oil line problem? - Burning oil smell after a drive, strongest near the turbo - Oil dripping from the back of the engine onto the bellhousing - Blue smoke from the exhaust on startup - Oil in the intercooler piping - A new whine from the turbo after a leak was ignored ## Feed line versus drain line The feed line carries oil under pressure. A leak there sprays or drips, and a restriction starves the bearings. The drain line is gravity-fed. If it kinks or clogs, oil backs up and pushes past the turbo seals, which looks like a failing turbo even when the turbo is fine. That is why we check both lines before blaming the turbo. If the turbo does have play or scoring, [diesel turbocharger bearing repair](https://route66autorepairshop.com/diesel-engine-services/diesel-turbocharger-bearing-repair) covers what comes next. ## Our turbo oil line repair process 1. **Clean and trace:** Oil residue is cleaned so the source of a fresh leak is clear. 2. **Inspect the lines:** Feed and drain lines are checked for cracks, kinks, collapsed hoses and worn fittings. 3. **Check the turbo:** We check shaft play and look for oil in the intake and exhaust sides. 4. **Replace and prime:** New lines, gaskets and O-rings are installed, the turbo is pre-oiled, and the engine is run and rechecked. ## What's included in turbo oil line repair - Leak trace after cleaning - Feed and drain line inspection - Turbo shaft play check - New lines, gaskets and O-rings as approved - Turbo pre-oil before first start - Leak recheck after heat cycle ## Is it a need-now or need-later repair? **Need now:** - Oil dripping on the exhaust - Low oil pressure warning with a feed line leak **Need later:** - A drain tube O-ring that is damp but not dripping - Surface rust on a steel line that still seals ## How pricing and timing work Some turbo lines are easy to reach. Others are behind the engine and near the firewall, which may mean removing intake or exhaust parts. Price reflects that access, plus any gaskets required. You see the full list on the written estimate, and AAA members save 10% up to $75. For boost problems that show up at the same time, see [diesel turbo boost pressure repair](https://route66autorepairshop.com/diesel-engine-services/diesel-turbo-boost-pressure-repair). ## Aftercare Expect a little smoke as residue burns off. Keep up with your [diesel engine oil filter replacement](https://route66autorepairshop.com/diesel-engine-services/diesel-engine-oil-filter-replacement), since clean oil keeps the feed line and turbo bearings healthy. ## Frequently asked questions ### Can a turbo oil leak cause a fire? Oil on a hot exhaust or turbo can smoke heavily and, in rare cases, ignite. Treat an active drip as need-now. ### Does blue smoke mean my turbo is bad? Not always. A blocked drain line can push oil past healthy turbo seals. We check the drain before condemning the turbo. ### Do you replace the lines with new ones or repair them? Most turbo oil lines are replaced as a unit with new seals. Patching a pressurized line is not reliable. --- Call (909) 608-7699 or visit https://route66autorepairshop.com/contact for a written estimate.