Any Shade Tree Mechanics ?

Discussion in 'General Discussion' started by dilloduck, Nov 16, 2004.

  1. dilloduck
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    dilloduck Diamond Member

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    The engine check light came on my dash today after my truck misfired a few times due to moisture. The damn dealership wanted BIG bucks to change plugs, wires, and cap ($380). I told em to screw themselves, took it home and the light went out without me doing a thing. It's my understanding that the light is related to emission control (O2 sensor etc.). I'm gonna just drive it as it is cause I think it was a temporary poor gas/air mixture that resolved itself. Tell me I'm right ?
     
  2. manu1959
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    manu1959 Left Coast Isolationist

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    change the fuel filter
     
  3. NightTrain
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    NightTrain VIP Member

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    What kinda rig is it, DD?

    Your check engine light can be many things... I'm no expert, but I've fixed a bunch of my own problems.

    I would damn sure change my own plugs before paying someone that kind of money. That's easy stuff. If you do change out your wires & rotor & cap, make sure you change out one wire at a time, so you don't get lost as to your firing order... it's pretty easy to do.

    Air filter okay?

    I think you're on the right track, though... I wouldn't worry unless it does it again. Lots of moisture can raise hell with a vehicle with old wires.

    If it's a Dodge, a good friend of mine is a master mechanic for Chrysler & I can run your symptoms by him.
     
  4. dilloduck
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    dilloduck Diamond Member

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    It's a Nissan pickup and I appreciate the feedback---I always do my own tune ups and already changed filters. I'm gonna trust all of us and just drive it.
    thanks guys !!! :thup: $380 for a fricken tune up ??? :laugh:
     
  5. NightTrain
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    NightTrain VIP Member

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    Nissan.. do you have 2 plugs per cylinder? As I recall, the rear ones were a real bear to get a socket on.

    I had a Nissan Pathfinder with the 6-cylinder in it a couple of years ago that had a bad O2 sensor in it.. the symptoms of that were only that in cold weather (from 20 degrees and colder) is that it wouldn't idle until it was warmed up. I don't remember the Check Engine light coming on except when it was struggling to stay running before it warmed up. Oh yeah, and my fuel economy went to hell, too... running too rich. But once it was warmed up, it ran just fine & never backfired.

    The bad news was that it was almost $400.00 as I remember for a new O2 sensor.
     
  6. freeandfun1
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    freeandfun1 VIP Member

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    it could have been something as simple as the gas cap not being on tight enough. In the newer vehicles that is a common occurance (I know, my wife seems to have a "difficult" time putting the gas cap on right). If the truck is a newer model and the light went off by itself, I bet you a buck that is what was wrong. Had you gotten gas shortly before the light came on?
     
  7. dilloduck
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    dilloduck Diamond Member

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    I think the O2 sensors are cheaper now and I was gonna take a flyer and just install one but hey---I can wait now !
     
  8. dilloduck
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    dilloduck Diamond Member

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    Checked that too---I'm thinking the misfire caused too much unignited fuel to blow through and THAT set off the sensor---at least I know NOW that the damn things automatically reset themselves if things return to proper running condition!

    Thanks again all !
     
  9. Mr. P
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    Mr. P Senior Member

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    Here ya go Dillo..I find this site very helpful for many do it yourself "?".
    In the auto section they have working mechanics that will respond to your question (No Charge).

    Here we have a parts store called Auto-Zone that has the equipment
    to plug in and read the code that causes that check light to come on..No Charge. Maybe one around you does the same.

    http://doityourself.com/
     
  10. dmp
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    dmp Senior Member

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    If the light comes on, then goes back dark on occasion, it's likely the O2 sensor - you can drive that way for awhile...but your car could run rich...bad for Cat Converters.
     

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