Re: RPM surge? 2003 H2
i been fighting with this problem for last 6 month 03 H2.
I replaced 2 transmission (rebuilt units) mine was NOT a core. I have replaced maf, map etc... Nothing.
Only interesting thing I found; if I plug the truck and drive into a obd reader, the O2 sensors are going crazy and it shows it never goes past 3rd gear, but i was doing 65MPH at 2600RPM???? I think it is a wiring OR PCM problem.
|