1. Park Pawl/Shift Linkage Issues:
* Park Pawl Mechanism: This is the most common cause. The park pawl is a mechanical device that locks the transmission in the Park position. Wear, damage, or binding in this mechanism can make it difficult to engage Park. This often manifests as a stiff shift into Park, but *also* potentially a stiff shift *out* of Park. This requires professional diagnosis and likely repair or replacement.
* Shift Linkage: The linkage connecting the shifter to the transmission can become worn, bent, or misadjusted. This can create binding and make shifting difficult. Inspect the linkage for damage, looseness, or binding points. Adjustment might be possible, but usually requires a mechanic familiar with the Intrepid's system.
* Shift Cable (if applicable): Some transmissions use cables instead of a linkage. A frayed, stretched, or improperly routed cable could be the culprit.
2. Transmission Fluid Issues:
* Low Fluid: Low transmission fluid can make shifting difficult, though it usually manifests in other ways (slips, harsh shifts, etc.). Check your transmission fluid level—it's crucial for proper operation. *Improper fluid* (wrong type or severely contaminated) can also cause problems.
* Fluid Condition: Very old, dirty, or contaminated transmission fluid can thicken and cause various shifting problems. A fluid change is always worth considering if it's been a long time since the last one (or if it's unknown).
3. Internal Transmission Problems:
* Internal Wear: Significant wear within the transmission itself (e.g., worn components) can cause stiff shifting, but this is usually accompanied by other, more significant symptoms like slipping, hard shifting in other gears, noises, etc. This is a more serious and expensive issue.
4. Other Possibilities:
* Broken or Damaged Shifter Cable: A physically broken cable will prevent shifting entirely in most cases.
* Binding or Obstruction: Something might be physically interfering with the shifter mechanism. This is less likely, but worth a quick check to rule it out.
What to do:
1. Check the Transmission Fluid: This is the easiest and quickest check. Check the level and condition of the fluid. If it's low, add the correct type of fluid (consult your owner's manual). If it's dirty or dark brown/black, a fluid change is strongly recommended.
2. Inspect the Shift Linkage (or Cable): Look for any obvious signs of damage, looseness, or binding in the linkage connecting the shifter to the transmission. This usually requires getting under the car.
3. Try rocking the car gently: Sometimes, if the park pawl is slightly stuck, gently rocking the car back and forth can help free it up.
When to seek professional help:
If the problem persists after checking the fluid and linkage, you should take your vehicle to a qualified mechanic. Diagnosing and repairing transmission issues can be complex and often requires specialized tools and knowledge. Ignoring a stiff shifter in Park can lead to more serious transmission damage. Don't continue driving the vehicle with this problem.
