[Supras] Question about Exhaust fumes in cabin!

[D P]

Since the weather has been nice in Tampa lately, I've  been driving with my 
windows down or sometimes just the sunroof opened all the way.  Every once 
in a while, I can smell exhaust fumes inside the car mostly when 
driving.....I know it's not coming from the cars in front of me.  I believe 
it's coming from my own car.
I had to top up the coolant overflow tank just a tiny bit yesterday and 
noticed the smell of the coolant in the overflow tank was the same as the 
fumes inside the cabin.  I can't describe the smell but sometimes i'm 
thinking it's gasoline. I opened the hood after I got home and the smell is 
coming mostly from the driver side of the engine.  That confuses me more 
since I suspect the manifold gasket leak. The only exhaust leak I suspect is 
the exhaust manifold gasket.....I notice some white spots on the engine so I 
suspect it's an exhaust manifold leak.
My question is, has anyone experienced this?  What else could be causing the 
smell?


Thanks

Darren
92T 5-Speed White Package
Canadian Model in Florida

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