Hi, I have a 1996 Nissan 240sx that stalled going down the road. I took it to a local garage that works on foreign cars, they said the motor was gone prior to popping the hood. Today they called back and said that the car has no compression in any of the 4 cylinders and I should sell it for use in drifting... The Nissan dealership is located too far away to take my car to. Can someone give me an idea of what may be the problem? One cam is turning and the other one was blocked so I couldn't see it, the car has never smoked, has oil in it, and only 100,000 miles.
2006-08-31 12:32:20 · 6 answers · asked by guswas 1 in Cars & Transportation ➔ Car Makes ➔ Nissan
If your timing belt breaks you won't have compression anywhere that the valve is open. In your case it most likely jumped a notch or two but is still turning both cams. Your mechanic sounds like he wants to get your car for nothing or doesn't want to work on it. 100k is no mileage for this engine. First, if the compression was that bad you wouldn't have gotten the car started or if it did it would have smoked so badly you couldn't have seen to drive it. Second, It would have been using a lot of oil as the oil is what seals between rings and cylinder walls to give the max compression to make the car run as well as lubricate. Now approach it from a common sense realm. If the cam is still turning you are doing well. It probably jumped time by a notch which will put the cams and crank all out of time with each other. If each cam went out a little the valves will stay open a little when the pistons are on TDC or top dead center in firing position. That means no compression and no start. Then when it turns enough for the valves to close you are off the compression stroke on the crank and the piston is going back down to repeat another stroke. What does this mean? Still, no compression. Any backyard mechanic or mechanic want to be shoud have known this when they checked your car. My suggestion is get your car from there while you still have anything left to fix. If these morons are that bad I wouldn't let them add windshield washer fluid to my car.
2006-09-01 01:04:08 · answer #1 · answered by Craig H 3 · 0⤊ 0⤋
Please remove the valve cover and look at top dead center and cam marks.That 2.4 engine is a rock and almost never looses all the cyls at the same time. I'm a Nissan Master Tech, Do not trust the first Mechanic get a second opinion. Even far away Nissan technicians like working on Nissan cars
2006-08-31 23:06:50 · answer #2 · answered by John Paul 7 · 0⤊ 0⤋
Get a second opinon if possible. I realize that you will have to have it towed, but it may be worth it. I had a car act the same way and all it was was bad plug wires.
If the second garage says the same thing, then I guess you are screwed, but you could sell the body to someone.
2006-08-31 19:42:35 · answer #3 · answered by opjames 4 · 0⤊ 0⤋
That definately sounds fishy dude. See if you can do a compression check yourself, or have them do it in front of you. Very strange to lose compression in all 4 cylinders at the same time.
2006-08-31 20:08:34 · answer #4 · answered by defbizkit99 2 · 0⤊ 0⤋
You may have some sort of valve leakage. Check all of your pressure settings. Definitely get a second opinion. The towing cost will be worth your while.
2006-09-01 07:54:47 · answer #5 · answered by jdep091_98 1 · 0⤊ 0⤋
puse it off a ciff
2006-08-31 22:10:50 · answer #6 · answered by gtcooliebaixxx 2 · 0⤊ 0⤋