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2001 GMC Jimmy - Page 4 Questions & Answers
Explain abs sensors
On the abs you have a sensor on every wheel bearing some ontop of the rear end the best way is to use a scanner the only way it will tell you what code then Google it you find the ans. Also you have an abs module but like I said you won't know unless u use a scanner give me the trouble code I try to help you without a code your working blind
High rpm at idle
Check the vacuum hoses, and the intake manifold gasket for a leak.
I have a 2003 jimmy that blows very little heat at level 4
It sounds like it could be the control panel or the
A/C And Heater Control Calibration you can give this info to your mechanic... but if i were you i would go to gm dealer.replacing the wrong part will get expensive fast..... hopes this helps you..........................................
A/C And Heater Control CalibrationRe-Calibrating Actuators (Primary)
When replacing the HVAC control module it will be necessary to allow the HVAC control module to perform a calibration process. When installing the HVAC control module be sure to perform the following:Important: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted, improper HVAC performance will result.
- Place the ignition switch to the OFF position.
- Disconnect the scan tool.
- Install the HVAC control module.
- Connect all previously disconnected components.
- Start the vehicle.
- Wait 40 seconds for the HVAC control module to self-calibrate.
- Verify that no DTCs have set as current DTCs.
When replacing the HVAC actuator it will be necessary to allow the HVAC control module to perform a calibration process. When installing the HVAC actuator be sure to perform one of the following:Important: Do not adjust any controls on the HVAC control module while the HVAC control module is self-calibrating. If interrupted improper HVAC performance will result.
Alternate Method (W/O Scan Tool)
- Clear all DTCs.
- Place the ignition switch to the OFF position.
- Install the HVAC actuator.
- Connect all previously disconnected components.
- Remove the HVAC B fuse for a minimum of 10 seconds.
- Install the HVAC B fuse.
- Start the vehicle.
- Wait 40 seconds for the HVAC control module to self-calibrate.
- Verify that no DTCs have set as current DTCs.
Preferred Method (W/ Scan Tool)
- Clear all DTCs.
- Place the ignition switch in the OFF position.
- Install the HVAC actuator.
- Connect all previously disconnected components.
- Start the vehicle.
- With the scan tool, initiate the Motor Re-calibration feature of the Heating and Air Conditioning Special Functions menu.
- Verify that no DTCs have set as current DTCs.
Why won't my parking brake pedal stay down?
Most parking brake pedals work with a dog and pawl , much like a row of saw type teeth that have a small pivoting stop which catches in the teeth to lock down the pedal. If the pivot does not fully engage to teeth because of dirt or rust the pedal will return to its original position. This may also happen if the release cable in not fully returning. You can try pushing on the release handle rather than pulling and see if your pedal now locks in place. You can lube these parts with a can of spray lithium grease but be sure to protect your carpet and pedals so they do not get stained or become slippery. Mask areas off with newspaper or cardboard. Work the pedal and release cable a few times. It will usually free up any binding parts. I hope this helps!
Will not start
check for blown fuse. if its all ok, then check then check the fuel presure
How long does it take to replace a fuel pump on a
If your doing it on the ground, with a half or full tank. About five hours, if you know what your doing. otherwise, look at 8 to ten hours. On the ground. With a lift and jacks, you can do it in about 2 hours. Again, if you know what your doing.
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