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99 astro van changed turn signal switch because when I would turn it left it worked fine but when I turn it right all the 4 blinkers come on! I still dont have a clue why its doing that anybody have a clue fuses relays and bulbs are good

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  • Cars & Trucks Master
  • 3,714 Answers

Check the hazard switch and relay.

Posted on Mar 22, 2014

  • 8 more comments 
  • javi mascorro Mar 23, 2014

    Well the hazard switch is on the turn signal switch and well I put in a new relay also do you think it might be grounds?

  •  Russ Hill
    Russ Hill Mar 23, 2014

    it could be a earthing problem. been trying to find the earths on this model but the earths use other parts 2, has the turning switch ever made a crunching sound. .... there is another test you can do there should be a fuse in fuse box remove it and check the turn signals switch if thats fine and no lights on. if you get the lights on its got a cross over from some were in the lighting circuit. means you getting live from another source, if it does this it may be the continuous live wire on the right side rear wiring.

  •  Russ Hill
    Russ Hill Mar 24, 2014

    my betting is its the switch though as its 99 and a van so its on the move alot at turning switch will have a lot of use.

  •  Russ Hill
    Russ Hill Mar 24, 2014

    do you have any other problems on the switch says there is a few types

  • javi mascorro Mar 24, 2014

    Well the switch got replaced new! But yet still does the same! Yesterday I even turned on the lights and even the license plate lights blink too now!

  •  Russ Hill
    Russ Hill Mar 24, 2014

    do you have a meter ? or can you borrow one. put it on normal resistance or beep and put on end on the battery and then the other lead to the shell there should be no resistance.. if fine then take out one side of the rear lights and do the same to that end the earth wire and then the shell. if that is fine it must be some were in the dash that the problem is. it could even be the fuse box. also check that the floor is not wet or damp. as water could be the problem.

  • javi mascorro Mar 24, 2014

    Resistance is good and well now my instrumental cluster blinks also and radio does too

  •  Russ Hill
    Russ Hill Mar 24, 2014

    should be no resistance at all. digital reading should be 000 and beep. there is definitely a leak over to other systems on the wiring if its moved over to radio and instruments cluster its an earth leak somewhere. but if it has made it worse with the new stick. are you sure the new stick you got was working one ? it would stay the same as it was before or better with the new stick but worse sounds like there is a fault with that one.

  • javi mascorro Mar 25, 2014

    Well it cost me like 170 or so at autozone brand new! Well when I do test it from the switch it throws out perfect current until it reaches fuse box and relay under dash! Could that be it? Is there a way it could be shorted out?

  •  Russ Hill
    Russ Hill Mar 25, 2014

    the relay could be damaged or there is a short in the fuse box. would say you were robbed at auto zone seen online new 75 Dollars. can you find the main earth wire in the fuse box and try that to the shell like in the battery.



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