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1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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tarbox75
New User
Jun 9, 2009, 8:53 AM
Post #1 of 8
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1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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HI,
I have a 240sx that has plenty of spark. Pulled plugs after turning over they are wet with gas. But it won't start because it floods. Any idea of what is wrong?
I need to get this car running because we have too many sitting around.
Thanks for any info you can provide.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 9, 2009, 9:53 AM
Post #2 of 8
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Re: 1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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Do you have spark at the plugs?
How old is the fuel?
How long has this car been sitting around? Did it run when it was parked?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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tarbox75
New User
Jun 9, 2009, 12:49 PM
Post #3 of 8
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Re: 1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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I do have the spark plugs. It has not sat very long. As for how old the fuel is, I don't honestly know. I am sure it is not that old.
Is there something I should be looking for on the plugs?
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tarbox75
New User
Jun 9, 2009, 12:52 PM
Post #4 of 8
(3094 views)
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Re: 1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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ooops! I misread what you had responded.
I do have spark at the plugs.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 9, 2009, 1:30 PM
Post #5 of 8
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Re: 1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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Well, if you have spark and fuel, then you need to take a compression test. That's all that's left.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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tarbox75
New User
Jun 9, 2009, 2:50 PM
Post #6 of 8
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Re: 1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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We did a compression test and the result was around 100 per cylinder.
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Hammer Time
Ultimate Carjunky
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Jun 9, 2009, 2:53 PM
Post #7 of 8
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Re: 1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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Something your telling me is wrong. If you have spark, good fuel and compression, the engine will run. If the plugs are fouled, try a new set but either your test results are wrong or it will start right up.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Loren Champlain Sr
Veteran
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Jun 9, 2009, 3:08 PM
Post #8 of 8
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Re: 1995 Nissan 240sx 2.4ltr twincam 16 valve with 114,000 miles
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Pardon my jumping in here.
tarbox; How was this running before this happened? 100psi compression isn't anything to write home about. Just barely enough to fire a cylinder. A few things could be going on. Being a Nissan, the first thing I would suspect is the coolant temp sensor. Remove the connector and inspect for corrosion. Clean both the connector and the sensor terminals. It is very common for these sensors to go bad, and when they do, they tell the computer that it's -40F. The computer, thinking you are in Fairbanks in the middle of winter, will 'dump' fuel, flooding the engine. If enough fuel, it will wash the cylinder walls of oil and cause low compression which just adds to the already problem. If this turns out to be the case, while you have the plugs out, squirt a little bit of oil in each cylinder to help it reseal, then put in fresh plugs.
The other possiblity (among many) would be that the timing belt has jumped a tooth or two. Just a tooth or two may show up as lowered compression. Some engines won't even run if it's jumped two teeth. And, this will usually happen when you shut the engine off.
Loren
SW Washington
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