Hey guys! I'm new to this forum and I'm trying to find some help since everybody I talk to can't help me. So i just put a new motor in my 97 eclipse rs. I put the motor in on the 4th of July. The car passed inspection and emissions test with flying colors. So on Saturday I was out driving the car taking it easy on the motor (hasn't been over 4k rpm's) and out of nowhere their is extreme amounts of thick white smoke coming out of the exhaust. So seeing white smoke I thought of what everybody else thinks (headgasket). So I checked the coolant and it is nice and green and full. I changed the oil to look for that nasty coolant mixed in the oil. The oil was clean only having 300 miles on it. So I thought ok maybe it's burning the coolant before it mixes with the oil. I took the radiator cap off with the car at idle and not 1 air bubble. I did a compression test and the numbers seemed normal (C1 was 190 C2 was 195 C3 was 192 and C4 was 196) I can't seem to find any signs of a HG problem besides the thick white smoke. The smoke smells heavily of gas. So I started thinking their was something wrong with the fuel pressure regulator. I haven't checked it yet because a few people I talk to say the if the regulator went bad and the injectors had the pressure on them that the pump puts out, it would blow the injectors right out of the rail. Any help or ideas of where to start would be
greatly appreciated.

Thanks,
Kyle

valve seals. I just pulled my motor last night because of the same problem.

With it being a new motor i would doubt it would be valve seals.(if it was built right) and with it being white smoke i would think that would be oil. Was you decelerating when it started or on the gas?

davidaham said:

With it being a new motor i would doubt it would be valve seals.(if it was built right) and with it being white smoke i would think that would be oil. Was you decelerating when it started or on the gas?

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Burnt oil doesnt smell like gas though. If he had bad gas it could cause the valves to stick also. Bad gas basically turns into super glue before it just wont ignite. So if the valves stick open, more gas is going to burn.

OblivioAssebit said:

Burnt oil doesnt smell like gas though. If he had bad gas it could cause the valves to stick also. Bad gas basically turns into super glue before it just wont ignite. So if the valves stick open, more gas is going to burn.

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But he did a compression test and it came out normal. i am not saying to rule out the valves. but if it is smoking that bad i try some other test before i would pull the head

Well after tinkering around a little I discovered about 3/8 of an inch think of oil and carbon build up in the intake, the intake was soaked in oil. I guess that the pcv valve went bad. and is dumping oil when its not supposed to