Hyundai 30L-7A:
runs rough with random backfire

Hello
We have a hyundia 30L-7 that has a very erratic miss and backfire. We cant make it happen, and it can be at anytime. Does anyone have any experience with this? We have in the past had a cat that the crank sensor was failing on that kind of acted like this but not sure if it's similar to the hyundias or not.

Any ideas would be appreciated
  • Posted 27 May 2015 00:53
  • Discussion started by pat_r
  • British Columbia, Canada
Showing items 1 - 3 of 3 results.
Check the wires, connector of CAMshaft sensor, if not, check CRANKshaft sensor.
Change the Spark Plugs.
  • Posted 2 Sep 2020 03:52
  • Reply by Rt210
  • BP, Hungary
I'm a beginner.
if this truck has a distributor and rotor, order the OEM rotor. I have had a few with a "**** near fits perfect" rotor, and the same symptoms, and it turned out to be the rotor was just a tad loose on the shaft when running.
  • Posted 4 Dec 2015 03:27
  • Reply by edward_t
  • South Carolina, United States
Did you get a resolution to this problem? I have a 25L-7M with about the same issues. Runs great then backfires and dies at random. Thanks
  • Posted 3 Dec 2015 14:36
  • Reply by Hardline
  • Texas, United States

Post your Reply

Forkliftaction.com accepts no responsibility for forum content and requires forum participants to adhere to the rules. Click here for more information.

Having trouble using the Discussion Forums? Contact us for help.

PREMIUM business

F. Uchiyama
Global exporter of used forklift and construction machinery, servicing over 80 countries.
Movers & Shakers
Linda Häkkilä Linda Häkkilä
vice president, Investor Relations, Konecranes
vice president operations, Elokon Group
President, EP Equipment Europe
Senior vice president human resources, Kalmar