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Coolant temperature sensor? Is that the thermostat for the coolant. If it is, I have replaced that about 6 months ago.
I will test the vacuum leak with the water squirt.. Thank you for the tip.
Coolant temperature sensor? Is that the thermostat for the coolant. If it is, I have replaced that about 6 months ago.
I will test the vacuum leak with the water squirt.. Thank you for the tip.
There are 2 issues with that:
1. How do you hook up the vacuum gauge to test it.
2. What’s the estimated cost to get one. Or even rent one?In Mar 2011, my engine was stalling (surging during acceleration). Had the mechanic check it out. It was a vacuum leak at the throttle body gasket (TBG). Very simple gasket to replace but the diagnostic was pretty difficult. The mechanic pumped colored smoke into the engine (I think the vacuum system) and colored smoke came out from the TBG when running the engine. I don’t have that kind of equipmt to do that. It cost $30 just to blow smoke?! :ohmy:
There are 2 issues with that:
1. How do you hook up the vacuum gauge to test it.
2. What’s the estimated cost to get one. Or even rent one?In Mar 2011, my engine was stalling (surging during acceleration). Had the mechanic check it out. It was a vacuum leak at the throttle body gasket (TBG). Very simple gasket to replace but the diagnostic was pretty difficult. The mechanic pumped colored smoke into the engine (I think the vacuum system) and colored smoke came out from the TBG when running the engine. I don’t have that kind of equipmt to do that. It cost $30 just to blow smoke?! :ohmy:
Thank you so much for the replies. First, there is no engine light on. Mileage is now 222,650. I view the videos, the power balance test and vacuum leak test. Seems it’s pretty risky to check the vacuum leak if there’s a high risk of catching fire. Since I don’t have the fire extinguisher for standby, it may not be worthwhile to buy one (might as well pay for the test).
Anyway, if I want to change the O2 sensors. How do I ascertain O2 sensors are the cause? And, how do I change the sensors? Any special tools needed for Infiniti G35? Generally speaking, I know there are a few sensors for Infiniti G35.
Speaking of engine light, I know how to use the OBD II Code Reader to read the errors codes. Can I use the code reader to diagnose the incomplete combustion? What do I look for?
Thank you so much for the replies. First, there is no engine light on. Mileage is now 222,650. I view the videos, the power balance test and vacuum leak test. Seems it’s pretty risky to check the vacuum leak if there’s a high risk of catching fire. Since I don’t have the fire extinguisher for standby, it may not be worthwhile to buy one (might as well pay for the test).
Anyway, if I want to change the O2 sensors. How do I ascertain O2 sensors are the cause? And, how do I change the sensors? Any special tools needed for Infiniti G35? Generally speaking, I know there are a few sensors for Infiniti G35.
Speaking of engine light, I know how to use the OBD II Code Reader to read the errors codes. Can I use the code reader to diagnose the incomplete combustion? What do I look for?