Cleaned the snow off the Avalon and noticed a loud pop and the right highbeam light had blown out. Within 10 minutes as driving heard the left highbeam light blow out. Never had this happen with any previous car-This is a 2008 with 40,000 miles, are there issues with the Avalon headlights?

Yes I would get it checked before driving again..

Not enough information to answer. Need manufacturer, year, model, and engine size in order to answer the question.

you may have a loose spark plug or more likely a blown exhaust manifold gasket.

? Need more info. Did it restart?
Could have blown a spark plug out of the block?
Lots of possibilitys need to have more info.

the hum noise is a worn wheel bearing maybe from getting so hot it burnt the bearing. the rev and bang was your engine blowing. it will cost more money to fix these problems then just getting another car like this one.

check the drive line "U" joints

This is a fix for this issue. May be related on 1999~2004 Vitaras, but was discovered on my 2000 Tracker.

My headlights came on highbeam while driving, and then my heater blower failed. I pulled the fuses, went to work. Replaced fuses, left work, when clutch peddle depressed, high beams went off, when released, high beams came on again. 10 minutes later, both headlight fuses blew.

What I discovered: With a meter on resistance hooked up between ground and one headlight wire, At some times, I could see 50 Ohms, other times not much, sometimes 500 Ohms. I removed the lower access panel below the steering wheel an started looking. I noticed the wiring harness, above the steering column, looked like it might have been pinched at assembly, onto the assembly that holds the brake/clutch peddle. After much swearing, I managed to remove the hole assembly after disconnecting all the wires going to the clutch switches and brake light switch, and removing 4 nuts, and 3 bolts. After cutting open the plastic harness cover, I found 6 wires melted together right where it was pinched on the right side of the steering column, at the top of the Brake cylinder mounting studs. 20 minutes of butt splicing and using thick special electrical tape, re wrapping the harness, all was normal again! Total time of repair from investigation start to having an assembled running vehicle again, 5.5 hours. Tools used, Socket wrench 10 MM with extensions, 12 mm with extensions, phillips screwdriver, pliers (Removing pivot studs on peddles) Special electrical tape, crimpers, Loom, a cut up rad hose around sharp bits on peddle assy. Special knowledge, non, just remember to disconnect the battery first, and remove the bracket to the right of the steering column holding the auto lock and Daytime running light module (One 10MM nut)!

I saw a load of Tracker owners (1991 and up through 2002) complaining of similar issues online. After looking at my similar mileage Vitara, and my buddies heavily abused off-road Vitara, I did not see the same alignment of the harness so close to the pinch point. Hope this helps anyone with similar issues!

An automatic transmission consists of a series of bands (gears) which is each gear within the transmission. You state that truck will move in reverse, but not in drive. The loud pop you heard was the forward gear band breaking. From this point you have two options...either have the transmission rebuilt or replaced.

Loud popping/grinding most noticeably heard when turning is normally a sign of a bad CV joint. Look under the van where the axle half-shafts come out of the transaxle and connect to the backside of the wheel assembly. Are the rubber boots on the axles torn or missing?
If you hear the popping only in left turns, your right CV joint is bad, If you hear the popping only in right turns, your left CV joint is bad.

1995-97 Toyota Avalon Stereo Wiring Constant 12V+ Blue/Yellow Switched 12V+ Gray Ground Brown Illumination Green Dimmer n/a Antenna Trigger Black/Red Antenna Rear Window Front Speakers 5 1/4" Doors Left Front (+) Pink Left Front (-) Purple Right Front (+) Light Green Right Front (-) Blue Rear Speakers 5 1/4" Rear Doors Left Rear (+) Black Left Rear (-) Yellow Right Rear (+) Red Right Rear (-) White hope this helps