Possible head gasket problems or heads themselves
SOURCE: car won't start wants to turn over but nothing.
sounds like you have a blown head gasket this would explain loss of coolant and running poorly excessive smoke.
SOURCE: 95 maxima rough idle
The injector could definitely trigger a misfire code, but you also mentioned that you had a mass airflow sensor code , that code code be responsible for te sluggish moment of the vehicle and rpm going up and down. However if you have a misfire onCyl#6 and the coil and the plug is good the ONLY other thing to cause a mis-fire would be the injector. To check the injector get a NOID light, you can get one at almost any auto-parts place. To use unplug injector plug from the bad injector and connect it to NOID light the light should have a steady PULSE/ligt flickering. If light flickers fine then injector is bad and will need to be replaced. If light doesn't flicker or flickers intermittently then you may have a bad wiring to that injector. Check if wiring is good, then you may have a bad cam sensor or sensor gear. Good Luck and contact if you need more help. Thanks for using FIX YA
SOURCE: 1998 cavalier heats up when idleing. Fan comes on but still heats
Hello senior, whenever the coolant system is opened up there's a possibility you could get air in your system, only way to get it out is by using the bleeder valve, check the coolant temperature sensor it may not be working properly, it tell's the cooling fan when to kick on and off, the condition of the drive belt is also another factor, along with the tensioner and tensioner pulley. it sounds like a problem with the water pump, the cooling fan, or air in your cooling system, to get a good inspection of the water pump fin's you have to remove it.
SOURCE: Car running rough when raining
check the spark plug wires, put water in a spray bottle and spray along the wires,especially by the coil,if the car starts to run bad or you see sparks, the wires are no good, hope this helps, Ray
SOURCE: 99 jeep wrangler 4.0L 6 cylinder auto it started
You need to check the fuel pressure, if not enough it will run rough.
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