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Hummer H3For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.
my h3 is now 266000 km 2008 model
this year it starts to consume my pocket ( transmission rebuild, radiator full maintenance changing thermostat and sensor, and o2 upstream sensor)
currently the subject issue is appearing more frequently every 3 days
thanks god it didn’t happened in highway
i just stop the car and remove the negative battery then it returned back to normal
i know this subject has raised many times
i saw the bulletin regarding changing the throttle sensor.
but im looking for easy repair, the spare parts are expensive, the only alternative is changing the whole throttle body from the junk yard.
Before you replace the TB, disconnect the electrical connector and spray both sides of the connection (TB and Connector) with CRC Electronics Cleaner. While letting it dry, inspect the wiring for the TB for compromise, like cracks, frays, rubbing...If that does not improve the condition, then replace the TB with a new AC Delco unit for your year/model.
Before you replace the TB, disconnect the electrical connector and spray both sides of the connection (TB and Connector) with CRC Electronics Cleaner. While letting it dry, inspect the wiring for the TB for compromise, like cracks, frays, rubbing...If that does not improve the condition, then replace the TB with a new AC Delco unit for your year/model.
I have already cleaned both female and male connector, but not using CRC electronic cleaner
I think it was a cheap cleaner
I will re-oil my air filter and open the throttle body
To check if there is any issue happened during cleaning it one month ago
i founds out that my throttle needs frequent cleaning (butterfly ) in monthly basis. Engine is old but still surviving
easy job doing it in my garage and solve this issue
What are you using to clean the Throttle Body?
Spraying something at the open end and throttle plate is not cleaning. All late model fuel injected vehicle need a TB cleaning about once every 30 - 50K miles. It is done by using ONLY TB Cleaner and best with the TB removed from the vehicle so that both sides of the TB throat and throttle plate can be cleaned of residue and grime by wiping that out/off.
Do NOT use chock/carb cleaner or any other solvent spray/brake cleaner etc.. as you will damage the TB's internal plastic parts (gears and/or levers) and cause even more erratic response or failure.
P2135 Reduced power
