I get a sweet smell when I go WOT or just get into higher RPMs. I believe it's the smell of coolant. What can cause this? There is no evaporation or smoke out of my tailpipes on startup, cold or warm. I am changing the oil this weekend so I will check what that looks like. Is it possible I have a coolant leak somewhere and it leaks when the system gets pressurized under a higher throttle? Any places that are prone to leak that I should check first? The car runs fine.
Sweet smell when I go WOT
- Thread starter KDR83
- Start date
Fatboy 18
Enthusiast
Check the Timing cover gasket.
speedracervr4
Enthusiast
You can rent a coolant pressure checker from an autoparts store to see if you have a leak.
My vote also, if the smell is in the car. If it is outside the car, I vote for post 2 and 3, plus, you can add the front coolant bottle. One caveat - if you have silicone hoses you will probably get the odor normally when nothing is wrong.
RoyV101621
Enthusiast
What year? Head gasket?
VIPER GTSR 91
Enthusiast
I had this very recently at full throttle and my tech just needed to tighten the valve covers. All good now.
If its the heater core there should be some detectable wet around or below the core. The under load part is weird, load wouldn't affect the heater core much.....certainly not as much as opening and closing the "heat" setting on the dash right?
I haven't really had a chance to look around, where is the heater core located? You can definitely smell it in the car however my AC needs to be refilled so I am driving with my windows down. I will rent the pressure tester and check the valve covers this weekend.
No steam on windshield
No steam on windshield
Passenger side under dash. If it is leaking, you may see a drip on the underside.
No one is saying it is the core, just something to eliminate.
agentf1
Enthusiast
speedracervr4
Enthusiast
You can eliminate Head Gaskets with a block tester and pressure checker....
Darth Menace
Enthusiast
Did you hide your *** stash in the exhaust again?
Check the rear trunk/hatch breather vents. Pull up the carpet in the sides of your trunk and you will see a multiple louver/flap thingys. If a few are stuck open then that is more likely your problem. At WOT with the windows down exhaust fumes can get sucked in em if not sealing properly.
They are delicate. Be gentle pulling each one back down in place.
They are delicate. Be gentle pulling each one back down in place.
