Hello, I have a 1999 honda civic ex with 189K miles on it. Its an automatic, i have done a tune up about 5 months ago (plugs,wires,cap,rotor,air and fuel filter) and just about after that when i was driving on the freeway id get a slight miss here and there, recenlty its been getting worse, not today it just shut off in the middle of town and then i restarted it. twice today now. anyone know what this might be? i thought it might be bad gass, so i ran it all out and put a differnt company gas and fuel injector cleaner in. Thank you. Kodi
p.s. plug wires are all in the right order too, and spark plugs are gapped correctly.
SOURCE: oil inside cylinders
oil inside the cylinders happens two ways...bad or worn piston rings or bad valve seals. If you do a compression test this will tell you what the problem is. when you remove your oil filler cap with the motor running is there a lot of pressure coming from inside the engine? If there is, as I'm suspecting you are sadly suffering from a worn out engine.
SOURCE: 1996 Honda Accord Rough Idle Even After tune up
Perform a valve clearance inspection and adjust if necessary. Tight or sticking valves will cause a misfire or rough running concern. Note: Perform valve adjustment when the engine is stone cold. 4cyl: INT 0.26mm EXH: 0.30mm (V6 engine are hydraulic and no adjust necessary.) Also check for a sticking or stuck open EGR valve. For diagnostic purposes only: Remove the EGR valve. Place a business card over the EGR passage and bolt the EGR valve back on. This plugs the EGR ports and if the misfire goes away the EGR valve is partially stuck open and is defective.
Check for low fuel pressure. Check for low compression. Check cam timing. Check for a weak ignition coil. Also don't over look the possibility of worn or broken engine mounts which cause excessive engine movement and engine vibration. -hope this helps
SOURCE: I have a 1993 honda
check your air-mas sensor or maybe it could be your TPS(Throttle Position Sensor)
140 views
Usually answered in minutes!
×