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cmountains
New User
Aug 24, 2010, 2:32 PM
Post #1 of 2
(2199 views)
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Hi I have a 2004 GMC Envoy with the 4.2 v6 approx. 110,000 miles it has the check engine light on and shows the error codes 410 & 128. I would like to know where the components are located and how to fix the problems myself if possible. the 410 code states it is the secondary air injection system fault and the 128 code says coolant temp always low. I got the codes checked at autozone.
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dmac0923
Enthusiast
Aug 24, 2010, 10:45 PM
Post #2 of 2
(2188 views)
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coolant temp low could be a failed thermostat.
not sure on the P0410. looks like it has something to do with the air pump on the EGR system
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2015 Jeep Grand Cherokee
2002 Ford Ranger
2004 Toyota Corolla
1969 Ford Mustang Mach 1
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