Wednesday, November 16, 2011

My Daewoo Korando recently had a mini service with spark plugs replaced. Now it is misfiring any ideas?

The car starts fine but it is very difficult (slow) up hills. However, sometimes after it has been sitting for a while it drives ok.|||If it ran better before you changed the plugs you can pretty much bet there lies your problem. To make sure all the plugs are on correctly slide the boot up the plug wire till you see the clip (this may not be possible on some wires), push it on the plug and then push the boot down over the plug. Check that all the wires are firmly pressed into the distributor, they sometimes get pulled out when being tugged on replacing plugs.


If that's not it you may have gotten a bad plug or one could have been dropped and cracked the porcelain on the plug. Check the gap on each plug.


But being sporadic and the plugs and wires recently messed with I'd guess one of the wire clips is touching but not snapped down on the plug.|||I would replace the fuel filter and have the plug wires checked you can take an omen meter to check those , hope this helps.|||The ignition could be misfiring and you might detect the problem by parking the car in a darkly lit location with the parking brake applied. Then open the hood and after your eyes adjust to the dark, see if any sparks can be seen flying off the top of the engine where the spark plug wires run. If so, spark is leaking off to ground before it can get to the spark plugs and you have a bad plug connection or bad plug ignition wire. Have a friend punch the accelerator pedal a few times to help see the sparks leaking off the wires.|||Sounds to me like one of the spark plugs is gaped wrong.


Some one could have inadvertently bent the electrode by dropping the spark plug.





Or, one of the spark plug wires isn't pushed on all the way.


Gently tug on them to make sure they're connected.|||could be spark plug wire not snapped in place properly, could be that when it was removed it separated the end from the wire, and the person who did this either didn't realize what happened or didn't want to have to replace the wire... I would guess the latter since he should have listened to and driven the vehicle after...


In any case, thats what I would check...


Then I would sell the car for whatever I could get ASAP as they are total garbage and out of business...Good Luck..|||YOU SHOULD GET THE VEHICLES COMPUTER SCANNED AND CHECK FOR ANY PROBLEMS AS WELL AS CODES AND THEN YOU WILL HAVE A GOOD IDEA ON WHAT THE PROBLEM TRULY IS.





TRY FINDING AN INDEPENDENT SHOP INSTEAD OF THE DEALER OR A CHAIN STORE BECAUSE YOU WILL BE OVERALL MORE PLEASED WITH THE FINDINGS AND THE SERVICE.





LEAVE IT THERE WITH THEM SO THAT THEY CAN FIND THE PROBLEM FOR YOU, IT WILL BE A LOT BETTER THAN JUST REPLACING PART AFTER PART AND NOT DOING ANY GOOD.|||they put the wrong spark plugs in it|||some cars will run with wires crossed. I would check to see if that happened.





if it runs fine after sitting awhile, that blows the first paragraph all to hell.





I would bring it back to who did the tuneup.|||may not have anything to do with the plugs sounds like it could possibly be a bad catalytic converter.

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