Burnt Smell See something like this under your Celica? It’s probably burning off when you start your engine.Ĭauses: Burning Oil, Exhaust Leak, Smoker’s Specialīurning oil can cause a foul smell, particularly when the oil leaks onto the exhaust (look at the valve cover gaskets and exhaust manifold). If you hear a squeaking noise from the engine and smell rubber on startup, that’s a good indication that the serpentine belt is the problem. Rubber SmellĪ rubber smell can be caused by a serpentine belt that’s slipping. You can also catch the smell of fuel coming from the AC right after gassing up (particularly if you let it click a few times). If you smell raw fuel, we do not recommend driving your vehicle until you have it inspected by a mechanic. But it could also mean a fuel leak, especially if you smell gas coming through your air vents. If you smell gas when you first fire your Celica up, that may indicate a leak in the EVAP system. The smells described below are likely to manifest the most when your Celica’ss air conditioner is first turned on. See the section above for how to test and fix this smell from your car.Ĭelica’s AC Smells Bad When First Turned On Vinegar SmellĪ vinegar-like smell (a foul odor) is usually caused if your Toyota Celica has a clogged drain line. Here’s a good article from YourMechanic on how to unclog a drain line. ![]() If you don’t see any water underneath the vehicle, suspect that the drain line is clogged. If you are catching a foul smell, run the air conditioner with your Celica parked for a while. It can also cultivate a colony of mold and bacteria. If the drain line is clogged, water will back up and cause the AC discharge to become foul-smelling. One common reason your AC might smell bad is that the drain line is clogged. This water leaks out through the drain line. You can see the water when you’re parked, it’ll usually leak right behind the passenger tire. Your Celica’s AC system pulls a lot of humidity out of the air. If you can’t remember the last time it was changed, inspect it and replace it as needed. It should be replaced according to Toyota’s instructions. If it catches too much of that stuff without being changed, it Your Celica’s cabin air filter helps clean the cabin air by trapping dust, pollen, and other particles. A dirty cabin air filter is the number one reason a vehicle’s AC smells bad.Īll the air your car’s blower motor moves passes through it. Take a look at your Celica’s cabin air filter (if your model year is equipped). Heat and moisture can brew up quite a musty smell. It’s usually easy to find where a mold and mildew smell comes from. Moldy SmellĬauses: Clogged Drain Line, Dirty Cabin Filter You should be able to find the antifreeze leak if there is one. It can be very difficult to find where the refrigerant is leaking from. But, a sugary sweet smell can also indicate that your Celica’s AC system is leaking refrigerant. If the carpet isn’t damp, that doesn’t mean the heater core isn’t leaking. Depending on the vehicle, replacing a heater core can range from Is it damp? That’s a surefire indication that the heater core is leaking. When you catch the smell when your AC (or heater) is on, it’ll usually be coming from the heater core.įeel the floorboard on the passenger side of your Celica’s interior. Remember, the nose knows! Sweet SmellĬauses: Leaking Coolant, Leaking RefrigerantĪ sweet-smelling odor indicates your Celica is leaking coolant. This section is divided by the smells you are experiencing and lists what might be causing them. If your Toyota Celica’s AC smells all the time, it could be caused by an air conditioning issue, or it could be caused by engine problems. Leaking Engine Coolant, Leaking RefrigerantĬlogged Drain Line, Dirty Cabin Air Filterīurning Oil, Exhaust Leak, Smoker’s Former Vehicle
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