??? white smoke and lots of water vapor coming out exhaust????
04-15-2008, 05:54 AM
#21
Originally Posted by soccertoad
Had it towed to dealership the towing company was extremely careful when they loaded and unloaded.
Dealer called me just now and said that they heard nothing unusual upon startup and that they saw no smoke or excessive noise from engine. Suggested that I drive it for 1000 miles and then bring it back in.
I'm going to run over there and stand beside them as we start it up......
Dealer called me just now and said that they heard nothing unusual upon startup and that they saw no smoke or excessive noise from engine. Suggested that I drive it for 1000 miles and then bring it back in.
I'm going to run over there and stand beside them as we start it up......
Let us know how it goes man...
04-15-2008, 03:54 PM
#22
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Originally Posted by Spike100
Washing the engine bay won’t result in vapors coming from inside and out of the exhaust (white exhaust).
I do understand why you asked though.
--Spike
I do understand why you asked though.
--Spike
04-15-2008, 06:15 PM
#23
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Originally Posted by Julian@MRC
if he shorted out an injector or coil pack with water it may. To me his smoke sounds like unburnt fuel from one cylinder...The syptom started after he washed the car, then stopped once the dealer got it,perhaps it had time to dry out.
He said: “A week later, started it up and lots of knocking in engine area. Laots of white smoke coming from exhaust.” He also said he washed the car’s exterior, and not the engine bay.
What he describes (white smoke from the exhaust and knocking) it sounds as though there is coolant leaking to the engine. If that is the case, his valves and camshaft are ruined. This is bad… really bad.
--Spike
04-16-2008, 07:00 PM
#24
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Originally Posted by Spike100
I understand what you are saying, but the OP’s description unfortunately sounds much worse with the symptoms he describes.
He said: “A week later, started it up and lots of knocking in engine area. Laots of white smoke coming from exhaust.” He also said he washed the car’s exterior, and not the engine bay.
What he describes (white smoke from the exhaust and knocking) it sounds as though there is coolant leaking to the engine. If that is the case, his valves and camshaft are ruined. This is bad… really bad.
--Spike
He said: “A week later, started it up and lots of knocking in engine area. Laots of white smoke coming from exhaust.” He also said he washed the car’s exterior, and not the engine bay.
What he describes (white smoke from the exhaust and knocking) it sounds as though there is coolant leaking to the engine. If that is the case, his valves and camshaft are ruined. This is bad… really bad.
--Spike
Just curious as to why you say his cams and valves are ruined..
04-16-2008, 08:05 PM
#25
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Originally Posted by Julian@MRC
Ever sit back and think of something simple like a bad O2 sensor, causing the car to dump fuel and misfire, which would cause White smoke and knocking..
Just curious as to why you say his cams and valves are ruined..
Just curious as to why you say his cams and valves are ruined..
At this point… all is guessing. Let’s wait for the OP to tell us what finally happens.
--Spike
04-17-2008, 04:42 AM
#26
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Originally Posted by Spike100
…Because that is probably what is going on here.
At this point… all is guessing. Let’s wait for the OP to tell us what finally happens.
--Spike
At this point… all is guessing. Let’s wait for the OP to tell us what finally happens.
--Spike
if he has "Knock" as in "rod knock" its not going to simply go away...A cylinder with a misfire at idle, may duplicate a knocking sound.
an excess of fuel would also cause white smoke..
So if an 02 sensor went bad it would do the same or if an injector shorted open it would also do the same..
04-17-2008, 04:47 AM
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Originally Posted by phreaktor
Julian,
I don't see you mentioning a blown head gasket.... Why?
I don't see you mentioning a blown head gasket.... Why?
I find it hard to believe a stock N/A low mileage Z would blow a Multi Layer Steel headgasket that has upheld up to 10-12 psi of boost pressures. Plus once a headgasket is blown, its blown, it does not go away..
Im just sceptical on the headgasket issue, unless he was running a turbo, or overheated the car very bad..
04-17-2008, 04:57 AM
#29
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I have this problem now that I think about it. I'm leaning to think it could have something to do with what Julian said but I need to swap out coil packs to see (I'm thinking an oil leak may have shorted one out). My temperature is always normal and my coolant level is fine. When it idles it smells like a decent amount of fuel 
04-17-2008, 04:58 AM
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Originally Posted by Julian@MRC
Cause people jump to conclusions on this forum with very little knowledge and experience. We like to eliminate the smaller obvious things first, which 80% of the time are overlooked..
I find it hard to believe a stock N/A low mileage Z would blow a Multi Layer Steel headgasket that has upheld up to 10-12 psi of boost pressures. Plus once a headgasket is blown, its blown, it does not go away..
Im just sceptical on the headgasket issue, unless he was running a turbo, or overheated the car very bad..
I find it hard to believe a stock N/A low mileage Z would blow a Multi Layer Steel headgasket that has upheld up to 10-12 psi of boost pressures. Plus once a headgasket is blown, its blown, it does not go away..
Im just sceptical on the headgasket issue, unless he was running a turbo, or overheated the car very bad..
04-17-2008, 04:58 AM
#31
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Originally Posted by blasian
I have this problem now that I think about it. I'm leaning to think it could have something to do with what Julian said but I need to swap out coil packs to see (I'm thinking an oil leak may have shorted one out). My temperature is always normal and my coolant level is fine. When it idles it smells like a decent amount of fuel
04-17-2008, 04:09 PM
#33
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Originally Posted by Julian@MRC
But how would a leaking headgasket ruin his cams and valves? Im curious..
if he has "Knock" as in "rod knock" its not going to simply go away...A cylinder with a misfire at idle, may duplicate a knocking sound.
an excess of fuel would also cause white smoke..
So if an 02 sensor went bad it would do the same or if an injector shorted open it would also do the same..
if he has "Knock" as in "rod knock" its not going to simply go away...A cylinder with a misfire at idle, may duplicate a knocking sound.
an excess of fuel would also cause white smoke..
So if an 02 sensor went bad it would do the same or if an injector shorted open it would also do the same..
He said…
Originally Posted by soccertoad
What you say sounds reasonable, but would it be overheating on startup? I doen't seem like that wouldbe enough time to heat up.
I am not challenging your diagnosis, but simply offering the worst case scenario.
This is sort of like listening to the “Car Guys” on Public Radio where the two bothers from New Jersey attempt to diagnose problems presented by callers. It’s fun, but often not accurate.
--Spike
04-17-2008, 04:16 PM
#34
Originally Posted by gothchick
"Cannot replicate problem" is their standard answer for everything when it's under warranty. Lol~ I never let those monkeys touch my car. Most of the time, they do more harm than good.
04-17-2008, 05:31 PM
#35
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^^ I really believe that the dealership is often caught between a “rock and a hard place.” By this I mean they cannot get reimbursement from the manufacturer unless they present a repair as clearly covered by warranty; and even when they do this, they only get a partial reimbursement when comparing to a non-warranty repair.
For problems as these, I think the blame should be placed on Nissan rather than its dealerships.
--Spike
For problems as these, I think the blame should be placed on Nissan rather than its dealerships.
--Spike
04-18-2008, 07:39 AM
#36
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Originally Posted by SuperBlack350z
mine does this . i don't remember last summer it was doign this. After i put test pipes, in teh winter, i see whitish smoke as well and get condensation on my rear bumper. It's also staining it. I wonder what it is. My coolant is normal..hope it's not a head gasket. But i see most other cars in winter having that same white smoke..but mine stains my bumper...which i think it's because of the test pipes.
