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Have a 2004 rmz250 backfires when backing off and at idle as if there is ingnition prob have only started doing it. Maybe low speed coil?

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  • Cars & Trucks Master
  • 15,478 Answers

This is most likely a boot seal on the carb that has cracked etc. Check all the gaskets and seals and rubber parts. It could also be chain slop on the timing gears.

Posted on Apr 15, 2017

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Low idle speed problem!

You probably disturbed the timing between the crankshaft and the camshaft if you loosened the timing belt.

Posted on Apr 18, 2009

keithheavili
  • 410 Answers

SOURCE: hesistaton at idle speed. how many ignition coils are used in a 98 lexus es300?

I looked it up on AutoZone.com and it looks like there is only one coil.  You can verify that by giving them a call.  However, to me it sounds like you might be having a problem with your idle air control valve.  Since you are only having problems when the vehicle is at idle I would take a look at your IAC.  It is located on the throttle body and is usually held on by two screws.  When the IAC starts to go bad you will have problems with the vehicle when idling.  Let me know if you have any other questions.  Thanks for rating my response and for using FixYa!

Posted on May 25, 2009

  • 1146 Answers

SOURCE: 2004 Sebring: The heater blows hot air only at

Hi:
One thing to consider is your thermostat and water pump. If somehow, your thermostat is stuck open, your engine won't get up to temperature. Also, a bad waterpump won't move coolant thru the heater core. Both of these situations should show up on your engine temperature, making it hot or cold...but sometimes they don't show up if your driving pattern doesn't tax the engine..My daughter's car had a bad electric cooling fan , and never was a problem, unless she was stuck in traffic...

Posted on Dec 06, 2009

  • 31 Answers

SOURCE: I own a 2001 volvo S40 1.9L and it starts but

sounds like the timing is off. the timing belt may have jumped a tooth and is causing these problems.

Posted on Jul 04, 2010

  • 969 Answers

SOURCE: 93 Impreza hesitation at low rpm light backfire

Check the WOT sensor. WOT = Wide open throttle.

Posted on Nov 07, 2010

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------------Engine Backfires? http://technoanswers.blogspot.in/2012/02/jeep-backfires.html----------- Nissan stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

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Nissan Pathfinder Backfires? http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-backfires.html
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