1995 Nissan Maxima 3.0L 24 Valve 280,000 miles:
My car was originally running fine 2 weeks ago, last weekend noticed that the engine began to miss, decided to replace spark plugs as it was needed, so Saturday I replaced all 6. After replacement engine still missed, and began to look further into the problem. Found that the (looking at car) front/left fuel injector was bad, so I replaced the injector using online guides in proper removal and installation. After replacement I took the car for a very short test drive, absolutely no problems. Today, I went to Food City and purchased gas, still no problem, drove to a local restaurant and after being there 30 minutes went back to the car. Now the car is missing again, blowing white smoke, which should indicate oil, yet there is a heavy stench of fuel in the air. I am afraid to allow my fiance to leave in the car; could it be bad gasoline, or am I looking more towards a blown head gasket/fuel regulator/or something I'm not considering? One other thing I did notice a little corrosion around the electrical plug to the fuel injector I replaced, did not think it was of much matter though. The oil is not milky, yet has a faint hint of fuel.
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Let's try the cheapest fix first. Change the fuel filter out. You'll probably see a brown looking goop in the gas, This is an "ETHANOL" problem. Read up on it. These are all related to so many idle and acceleration problems. Buy a can of SEAFOAM at the parts house. Fill up tank with Premium and add SEAFOAM. Then change filter out before 500 more miles. This should clean out the water and the goop and the carbon build up caused by the ETHANOL. Add a can of SEAFOAM every 3000 mile after that to a full tank of gas. It will keep your emissions,engine, and fuel lines clean. And will keep your car from line freeze up. Good luck.
Depends on how well the car was maintained. Cars can last for year and thousands of miles, but here is no magic number. I have 280,000 on my truck, but it has had a transmission replaced and lots work done to it. Engines these days have tighter tolerances and tend to last longer (as long as the timing belt does not break) than they did years ago, but other components may fail long before the engine does. If you are looking at a used card, have a good mechanic inspect it first...$50 to $100 up front is better than hundreds more down the line.
It sounds like a clogged catalytic converter. If you can unbolt it; try unbolted it and see how it runs. Also try unplugging the sparkplug wire one at a time and see if the shaking gets worse or stays the same. When you pull a spark plug wire and the car stops shaking then that cylinder isn't firing. Watch out though, you'll get a nasty shock if you do it without insulated pliers. It could be a stuck valve or bad ignition.
the a/c condenser has a fan in front ( there is actually 2 fans if you sit on the car it will be fan on right side ) if this fan does not
come on immediately when you are parked and engine in idle
there is a problem with power to it, or motor failure. If you drive it
on the highway and a/c operates fine that's because air is circulating though condenser (thats what the fan is supposed to do at idle or slow traffic)
You may have sludge in the idle air bypass valve and or the throttle blade is sludged up, clean them with an approved spray cleaner, call honda and ask what they recommend. You may also have a loss of fuel press due to a defective check valve in the fuel pump, in that case cranking time is increased quite a bit, as much as 5 or 10 seconds.
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