My dads 2000 bonneville SE is, eating a little coolant, exhaust is a little white and smells sweet, and i can see a little smoke off the front 2 cylinders to the drivers side of the car.

temps seem fine, powers a bit down. i personally want to repair it, he wants to wait a month to get a new car. the sweet smell+exhaust smoke has been there for about 4 months, the smoke off the cyliders just happened 2 days ago.

just curious once these things start to leak, how quickly do they just give out?

Its been runnin dexcool since day 1, had a rad flush at 40000km and dexcool put back in by the dealer, cars at 160000km.

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My Garage:
2000 Bonneville - Bronzemist
1979 403 TransAm - Gold
1969 Ducati cadet - Black (restored)

It could just seep for a long time, or it could fail at any time. IMO, fix it ASAP before it dumps a bunch of coolant in and either hydrolocks a cylinder or it gets into the oil and wipes out some bearings.

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WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights

how do i tell if its in the oil? the car burns a bit of oil, i put in 1qt between oil changes.

its just the LIM gaskets and the coolant elbow, right?

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My Garage:
2000 Bonneville - Bronzemist
1979 403 TransAm - Gold
1969 Ducati cadet - Black (restored)

Mine went 20 miles from when i started having misfires to when it needed to be towed

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97 Bonneville se-Winter car
85 Yamaha xj700-Summer cruiser

If it's in the oil you will get the famous "milkshake" look when you open the oil cap along with some froth.

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-Car Guy Carl
"Penelope" - 2003 SLE - 250k Miles
"Sydney" - 2000 Honda S2000 - 101k miles

It's either the LIM gaskets or the upper plenum itself leaking.

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Bye Bye:

RIP sandrock