Question about Holden Astra
Engine warning lights are also reporters for transmission faults
run the fault codes and check for problem over drive servo/solenoid or TCM problem
Posted on Apr 17, 2017
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Posted on Jan 02, 2017
DTC P0734 is "4th gear incorrect ratio" - that's your torque converter 'LOCK UP Clutch" It's worn out (or you're using the wrong Trans Fluid required by Hyundai - SPIII OR Both). The P1624 is simply the Trans Control Unit (computer) communicating to the Engine Control Module (ECM computer) MIL - on request signal to ECM = asking it to turn on "Check Engine" light. MIL = Malfunction Indicator Lamp. When the torque converter 'lock up" clutch slips or doesn't engage, the trans automatically returns to 3rd gear and stays there (it's called 'fail safe' mode) until you cycle the ignition key, then everything resets until the malfunction occurs again.
You'll need to have an AT (Automatic Transaxel) tester hooked up to verify this. Hyundai has a Service Bulletin specifically for "gear incorrect ratio' codes. If when you changed the trans fluid, was it done at a Hyundai Service Center? If not, someone may have installed the wrong fluid.
Posted on Jun 02, 2009
I had the same problem with my 2006 Jeep Liberty Renegade. I shared with the Jeep service tech what I found on the internet regarding this problem. I was having the gas cap sensor to display and soon after other sensors were lighting and dinging and some times dinging without any indicator and vice versa. the service tech said he was not aware of any such complaints and recommended a diagnostic which found no trouble codes and recommended to change to the gas cap. I did so and no sooner than paying almost $100 for the service and returning home the same thing started happening again. I returned my vehicle and they called the Chrysler/Jeep service tech who obviously was aware of these complaints [Service Bulletin #14-001-06] and recommended the following: A complete system reboot. Disconnect the battery cables and short together for 15 seconds. If message returns then the problem may be with cluster. I have not had any dinging or gas-cap sensor display since this was done.
Posted on Jan 27, 2010
try a simple diy job of replaceing the lambda probe (in between the exhaust manifold and the first box on the exhaust pipe).a quickfit type exhaust centre will do it in mins..
Posted on May 13, 2010
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