Re: when steeping on brake pedal a klunk in steering...
On the face of it sounds if one of either the engine or gearbox mounts are faulty. I assume this is an auto transmission the drive is being picked up and the engine is kicking slightly due to the rubber mount is worn. Open the hood and check it with someone (you trust) to see if you view this happening.
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1. Replace any hydraulic line showing external damage. Rubber hoses more than 4 years old should be replaced. Install new seals for all disconnected fittings (as required) and install an in-line power steering filter. Tighten all hose fittings to OE specifications. 2. Flush the entire power steering system using the vehicle manufacturers recommended fluid. Fill pump reservoir to the proper level.
3. Disable engine to allow cranking without starting. This can be done by unplugging the main power wire (large red one) from your Delco HEI Distributor unit. Block wheels, put transmission in neutral or park and set parking brake, then crank engine 5 to 10 seconds (avoid overheating starter motor).
4. Refill pump reservoir as necessary. Repeat step 3 until level is correct.
5. Enable the engine to allow starting. Start engine and let idle. Slowly turn steering wheel from lock to lock a number of times.
6. Turn engine off and inspect fluid level and condition. Add or remove fluid as necessary. If fluid is foaming, wait one hour then recheck level. Repeat step 5 and 6 until fluid level is correct and shows no sign of air. If the problem persists recheck installation and connections.
1. With engine off, apply and release brake pedal 5 to 10 applications to deplete accumulator reserve pressure. With foot slightly pressing brake pedal, start engine. Pedal should drop and then push back against your foot.
2. With engine running, turn steering wheel until lightly against steering stop. After 5 seconds return wheels to the straight ahead position and turn engine off. Apply and release brake pedal. There should be at least one power assisted brake application. Start engine and allow accumulator to recharge before moving vehicle. 3. Test drive vehicle.
NEVER operate any vehicle until brake and booster systems are functioning properly. Remember, your vehicle is only as good as it's braking system. Brakes are the singlemost important component on any motorized vehicle.
Most automatics have a lock on the transmission selector.
When the vehicle is in P (Park) you are not able to select drive or a gear unless you depress the brake pedal.
My Audi Q7 ha a solenoid and you hear it click when I put my foot on the brake.
This solenoid stops you from accidentally selecting a gear without the brake depressed.
Is it a single click when you depress the pedal.
Or is it a constant click click click ?
A Chevy Malibu is not a truck. Newer vehicles have so many sensors and safety systems it can be very difficult to diagnose any problem without a computer. You may need to have the engine running and sit in the drivers seat with the seatbelt on in order to get it into gear. If the shift lever seams locked in park I would suspect a problem with the brake pedal sensor. Unless you parked on a steep slope without using the emergency brake. Are your brake lights coming on when you press the pedal? If not try letting the pedal slap back a few times. Sometimes even a small grain of sand can cause temporary problems. There may also be a sensor in the seat. Check to see if its plugged in.
it's near the shift lever (that's the best description it my manual gives). on my windstar it was mounted on the steering colunm and the pin came out to lock the shifter... when you hit the brake the pin retracted... so i don't think you will have to hard a time finding it.
is it parked in a steep hill, if so,try to releave some pressure off it,and try to shift it,if not,block wheels so van wont move,inspect shift linkage,if ok,undo linkage from tranny,try shifter invan if it moves ok,if not,inspectshifter and linkange,if its ok,try moving shifter arm at tranny,be careful!if it doesnt move, youll have to take oil pan off tranny and inspect park gear lock.
Try this. Go somplace where there are no cars, and no possibility of running into anything. Stop the car. Set the park brake. With the engine running, put the vehicle in 1st gear. Hold the foot brake pedal, and give it gas, and let out the clutch slowly.
If the engine does not stall real quick, the clutch disc is bad.
The term "shift lock" is the system that is in place to prevent the vehicle from being shifted out of Park into Reverse or Drive WITHOUT having the driver's foot firmly on the brake pedal. The brake light switch on the brake pedal closes a circuit that energizes a solenoid under the shifter. When the brake is applied, and the solenoid is energized, the shift lever is no longer "locked", and can be moved to the desired position.
The idea here stems from a phenonomon several years ago that dealt with the issue of "Sudden Intended Acceleration". What was happening here was, for some unknown reason, engines started developing high RPMS for no reason, and several accisents were reported due to this issue. The vehicle would accelerate "unintendedly", when putting into drive or reverse, and could hit something.