Question about 2003 Chevrolet TrailBlazer
I have a rough shift in 1st year, and the fan reves high up to 45 mph, the fan clutch seams to be sticking, but then on the highway I will lose overdrive and the fan will kick on. I initially thought it was the fan clutch until I saw the RPMs where around 3,000 at 60mph. Is this an electrical problem with the transmission because I don't have any leaks and the transmission fluid level is fine.
On the older style blazers the fan clutches did fail and would often be misdiagnosed as shifting problems as the clutch engaged and disengaged.... also a hard 1-2 shift can be due to your vehicle storing a transmission fault code in the ecm... some transmission fault codes will put the transmission into a fail safe or limp mode in which it engages high line pressure .... this can cause your hard 1-2 shift and will feel normal most of the time other than that. high mileage on the transmission fluid may also require it to be flushed and have the filter kit replaced
Posted on Jul 23, 2009
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Posted on Jan 02, 2017
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