Tis' The Season - Hard Starting
Posted: Thu Oct 29, 2015 4:45 pm
Hello All
1996 L300 Active World
Dual Battery both new (Cold Weather Package)
I have read almost all threads relating to glow plugs and hard starting. I have the 11V Self Regulating system based on my reading, please correct me if I'm wrong. From what I understand, I am very happy that I do not have the 6V system.
I have been having a hard time starting at temperatures between 10 degrees C and zero. Troubleshooting so far includes:
[1] checking for system voltage at the plug rail during the glow cycle (it's there, 11V all across the rail)
[2] pulling the plugs and measuring the resistance (three of them were at 0.7 ohms and the other was open, not sure which plug came from which cylinder if that matters)
[3] also applied battery voltage to all four (the three "good" ones glowed red hot within a second or two and the open one did nothing as expected).
I have the normal two clicks when cold and no clicks when warm indicating that the temp sensor and ECU are working correctly. So here's my question, will one bad plug cause the hard starting as described or could it be that the other three are on their way out as well? I am ordering new glow plugs to start and see what happens. Any suggestions as to what to look at while waiting for the plugs or what to look at next if the new plugs don't solve the starting issues would be greatly appreciated.
Forgot to mention, I am not seeing an EGT rise, probe is installed pre-turbo in the EGR blanking plate. Not sure if I should. IP seal seems to be mentioned frequently. Hope it doesn't come to that.
Thanks for reading!!
1996 L300 Active World
Dual Battery both new (Cold Weather Package)
I have read almost all threads relating to glow plugs and hard starting. I have the 11V Self Regulating system based on my reading, please correct me if I'm wrong. From what I understand, I am very happy that I do not have the 6V system.
I have been having a hard time starting at temperatures between 10 degrees C and zero. Troubleshooting so far includes:
[1] checking for system voltage at the plug rail during the glow cycle (it's there, 11V all across the rail)
[2] pulling the plugs and measuring the resistance (three of them were at 0.7 ohms and the other was open, not sure which plug came from which cylinder if that matters)
[3] also applied battery voltage to all four (the three "good" ones glowed red hot within a second or two and the open one did nothing as expected).
I have the normal two clicks when cold and no clicks when warm indicating that the temp sensor and ECU are working correctly. So here's my question, will one bad plug cause the hard starting as described or could it be that the other three are on their way out as well? I am ordering new glow plugs to start and see what happens. Any suggestions as to what to look at while waiting for the plugs or what to look at next if the new plugs don't solve the starting issues would be greatly appreciated.
Forgot to mention, I am not seeing an EGT rise, probe is installed pre-turbo in the EGR blanking plate. Not sure if I should. IP seal seems to be mentioned frequently. Hope it doesn't come to that.
Thanks for reading!!