My Chrysler Intrepid won't shift. What could be the problem?
It could be a sign of a lower or higher than normal resistance (1 to 3 ohms) of one of the solenoid windings in the transmission solenoid pack. To check the resistance of the solenoid windings, remove the solenoid pack connector first and then use an ohmmeter for testing each winding. If one or more solenoid windings have resistance that is lower than 1 ohm or higher than 3 ohms, then you will need to replace the solenoid pack.
However, if all the solenoid windings have normal resistance, have your transmission control module (TCM) checked for solenoid driver failure as this also can cause shifting issues. All the solenoid drives in the TCM should totally ground the solenoid while you or a technician performs a diagnostic test on it using a labscope. Once a defect in one or more solenoid drivers is detected, replace your TCM immediately.
Each time I switch my air conditioner on, a grinding noise develops somewhere in the engine compartment. The noise stops only when I switch off the AC. But when I plug the AC back, the noise can be heard again. What could have gone wrong?
This can be a sign of an internal problem in your Intrepid. The problem with continuing to use the AC is that the debris from the AC compressor will spread into the entire AC system. Cleaning the AC system would be next to impossible. You may unplug the compressor if you are bothered much by the grinding noise. This is a quick fix, but it may reduce the quality of your AC's performance. But we strongly recommend having your AC system checked by a qualified technician to stop prolonging your shifting problem.
The malfunction indicator lamp on my Chrysler Intrepid comes on with a diagnostic trouble code. What does this mean?
When the malfunction indicator lamp lights up, it could be a sign of several problems: excessively high ignition coil primary resistance, the ignition coil with high voltage drop on the power supply circuit, erratic primary circuit misfires and codes caused by irregular crankshaft position sensor signal or camshaft position sensor signal, and a corroded ignition coil driver wire.
To check the ignition coil, measure its resistance, which should fall from 0.51 to 0.61 ohms at 70-80° Fahrenheit. If the resistance is higher, replace your ignition coil. If the resistance is in normal range, check the voltage to the ignition coil. While driving your Intrepid, keep track of the power supply to the coil. If the voltage is lower than normal, inspect splice number S-129 and fix it as necessary.
You also need to check your crankshaft position sensor signal and camshaft position sensor signal for any defect.
Lastly, take a look at the wires from the ignition coil to the powertrain control module for any damage caused by corrosion.
My Intrepid refuses to restart after I drive it a lot of times and shut down the engine. It will only start up again when the engine has cooled down. How can I fix it?
Your engine seems to be flooding during the period between shutting your vehicle off and the engine cooling to almost ambient temperature. Try to start the engine while pressing the gas pedal to keep the fuel injectors from squirting.