Take the car for a long ride to fully warm it up, then see if you've got any white smoke (water vapor) coming out the tail pipe. If there's a lot of water vapor coming out and if extreme, also water driping out the tail pipe, then most likely there's a blown head gasket. To check for a blown gasket, do a compression test on all the cylinders before going any further.kellen_wynn said:Well I was in the works of having the O2 replaced, the guy at the dealership said it was 170 for the sensor, I dont think he knew what I was talking about. And he also said it 1500 for a gasket replacement! Fat chance! For that I'll just by a newer engine! I'll let it run a bit then drive to Autozone to replace the fuel line and O2 sensor. Lets see what happens.
kellen_wynn said:I'm trying to install this 300zx fuel filterart# 16400-N7605JP from Nissan of course! I followed the fuel pressure release instructions from Chilton( My engine felt like it wanted to hope out of the bay without fuel pressure). After that I took off the 240 filter and cracked a fuel line doing so, just another pain in the ass, and installed the 300 filter flat side up. After I patched the fuel line with tape(this is temp) I put eveything as was, started the engine and white smoke. Its getting dark and cold tonight so I'll check again tomorrow.
Things to consider:
1.The car started right up like a charm(I love it when my baby sexes me up like that)
2. Fuel/Filters/Lube are new and full, plugs new(I didn't install them so unknown brand) Timing was adjusted by the same guys. They did a good job.
3. Smoke was consistent and smells slightly sweet-like, warm exhaust, this is normal not the smoke.
4. I only idle for about 5 mins then had to put it in the garage so I'll have to get at it again in the day.
5. Stock car except K+N drop filter, K+N oil filter, and the 300zx fuel filter