Question about 2001 GMC Jimmy
What does that mean?
The P0410 code refers to the emissions system. The AIR pump puts air to the
exhaust to lower emissions. It takes in outside air and pumps it through two
one-way check valves into each bank of the exhaust.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.
Symptoms Possibly symptoms include:
Additionally, if you simply replace the AIR pump the problem may return again (and again). If you replace the pump, also clean out the hoses and replace the one-way check valve. If this is on a GM model that the TSB applies to, follow those instructions in the link above. In a few cases, people have put a small hole in the rubber cover on the pump which allows any water to drain out.
Also, please note that this may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!
Posted on Mar 06, 2009
This is the general emissions exhaust code, what is the actual issue you are having with the vehicle? have you tried to reset the code and see if it happens again? if so when you reset it does the vehicle run better then code pops and car runs worse or no change? let me know and i'll help you out
Posted on Mar 06, 2009
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Posted on Jan 02, 2017
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