Question about 1998 Chevrolet S-10 Pickup

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Loss of power will not go over 35 mph up a incline 4 cly automatic service engine light on. has more power at low rpm , High rpm sounds like it boggs down

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Could be the CAT is clogged

Posted on Dec 31, 2010

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Transmission shifts early (Is this normal?)


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Dec 22, 2009 | 1998 Chevrolet S-10 Pickup

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Not sure if the hubs are engaging?


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Stick shift # Automatic RPM


That is normal,If you do the same speed in 4th gear the rpm's will almost double.

The rpm's will repond faster in a manual than an automatic.

In a manual the engine supplies the power required directly to the gear that you have selected thus the engine rpm's will increase or decrease as needed.

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Transmission / RPM


These cars have a lock up torque converter meaning 4 gear going above 35 to 40 MPH, the engine and transmission lock together and turn at the same rate. I know that older GM cars had a plug that needed to be plugged into the transmission for the lock function to work on the torque converter and if you unplugged it the RPM's would run high as you describe. I have never had a 1999 Silhouette and I'm not 100% sure that these cars have that type of plug but it sounds like that type of problem. I agree with you. You know your car and I would take it to a transmission mechanic and describe your problem to them.

Good luck!

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