» » »

Toyota Q&A

Ask Your Question

1990 Toyota 4Runner Question: My 4runner missfires around 2400 to 2700 rpm. Runs fine at other rpms once warm

 

Question

beebow, Yorba Linda, CA, November 26, 2012, 17:46
 Rookie

When started it runs rough until warming up. New plugs, wires, distributor cap, rotor. No codes. Ran fine before radiator change which doesn't make sense. Shop wants to replace the distributor just to see if it helps.

1 Answer
Flag This
  • Answer #1

    your.mechanic November 26, 2012, 23:37
    Profile_thumbnail
     Master

    Possible issue with distributor, have a shop diagnose with a scope.

    Flag This
  • Reply

    beebow, November 27, 2012, 09:20
     Rookie

    Thanks for the response. We paid a shop diagnose the problem. They scoped it and couldn't find the issue. They wanted to change the distributor for $780 and see if it helped or not. If it didn't they were going to keep changing parts.

    Reply
    Flag This