Why does my Pontiac Bonneville shift so hard?

Pontiac Bonneville starts shifting hard from take off once driven for awhile or after driving at slow speeds. Any suggestions on the problem and how to fix it? I have to leave it in neutral and let it warm up Before it will Try to shift into gear Then it shifts hard going down the road.

Is there a problem with the solenoid on my Bonneville?

Computer reading shows problems with solenoid. I actually have 2-Pontiac Bonneville’s (’02 SSEI & ’03) that are experiencing the same problem. The 2002 SSEI has worse shifting problems than the 2003, however, they are both experiencing similar shifting problems. Nice cars but faulty shifting problems. I need to fix them….

What to do if your Pontiac won’t shift out of Park?

Move the assembly manually by putting the shifter inside the car into neutral and pushing the assembly on the side of the transmission down two notches to get it into the highest gear. This is only a temporary fix that will allow you to drive to a mechanic to get this fixed.

Where is the shifter cable in a Pontiac?

Feel on the side of your transmission, by the pan that holds the fluid, for a cable that is hooked to an assembly that moves back and forth, lengthwise of your transmission. This cable is the shifter cable and connects your shifter in the car to the transmission.

Why does my car suddenly shift into neutral?

Car worked fine, suddenly started shifting erratically. About 2 days later, it will shift into every gear fine for about 30 seconds, then seems to just shift itself into neutral until I shut the car off, take the key out, and turn the car back on. Then I get another 30 Seconds.

What happens when you have a bad Shift Solenoid?

Erratic shifting or shift slippage: The shift solenoids regulate the flow of hydraulic fluid for shifting. A problem with one or more of the solenoids can cause a lack of pressure, resulting in hard, soft or delayed shifts.

Why is transmission shifting hard from 1st to 2nd ND?

When anyone of this sensors is bad it hard to shift gear. So if the sensors fail to receive and send the right signal readings, shifting problems can occur due to the wrong signal transmission. Transmission shifting hard from 1st to 2 nd could be as a result of an issue in the vehicle vacuum lines.

Is there a problem with my 2002 SSEi?

The 2002 SSEI has worse shifting problems than the 2003, however, they are both experiencing similar shifting problems. Nice cars but faulty shifting problems. I need to fix them…. after the car is driven for about 30 minutes, especially in warm weather, it will start to have hard up-shifts only.

What happens when a transmission solenoid fails?

The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.

What kind of transmission did a Pontiac Bonneville have?

Bonneville models were standard equipped with Hydra-Matic (through 1964) or Turbo Hydra-Matic (1965-on) automatic transmissions. Options included power steering and power brakes as well as air conditioning.

When did the Pontiac Bonneville become a top line car?

In its third year, the 1959 Bonneville became a full top-line series with the addition of the four-door hardtop sedan and Safari station wagon body styles. The Bonneville played an important part that year in the introduction of two of Pontiac’s greatest marketing inspirations — the split grille and the Wide Track slogan.

How does a solenoid get power to shift gears?

The transmission control module (TCM) — the brains of the transmission — will send power to one of the shift solenoids in order to shift gears. Inside the solenoid, there’s a plunger surrounded by a magnetic coil.

What are the most common problems with a Triumph Bonneville?

1 Downshifting Problems 2 Starting Problems 3 Loud Squealing Brake Pads 4 Exhaust Popping On Deceleration 5 Cam Cover Gasket Oil Leak 6 Corrosion Issues

Can a bad ignition switch cause a Bonneville to die?

If replacing the battery doesn’t prevent dead battery symptoms, a bad regulator/rectifier can cause problems that seem to be coming from the battery. We’ve also met a few instances where the culprit was a worn ignition switch.

Why is the transmission shifting hard from 1st to 2nd gear?

Hi there. The transmission is shifting very hard from 1st gear to 2nd gear for the accumulator spring or piston is broken. The accumulator is designed to cushion the shift and allow the transmission to ease into the next gear. Without the cushion , the gears will slam together and jerk the vehicle around.

When does transmission shift hard from 1st to 2nd Rd?

When car transmission Fluid is low or dirty is could lead to transmission shifting hard from 1st to 2 nd and even from 2nd to 3 rd. So when you have a gear shifting issues, one of the things to check is your transmission fluid.

Why is it so hard to shift gears?

The automatic shifter has numerous sensors that regulator when and how the transmission changes gears. When anyone of this sensors is bad it hard to shift gear. So if the sensors fail to receive and send the right signal readings, shifting problems can occur due to the wrong signal transmission.

What does it mean when your transmission is not shifting?

Q: transmission not shifting and the rpm’s keep climbing up. the transmission is not shifting properly, replaced both input and output speed sensors, but the rpms seem to be climbing high and the transmission does not seem to be shifting, gets up to speed fine, but the rpms just keep climbing on it… My car has 200000 miles.

Why is the gear selector not moving forward?

If the gear selector is moving, than it’s time to move onto a transmission problem itself. Will it go in reverse, but not forward? If it does, it won’t be low transmission fluid. Your car won’t be able to go into gear if the transmission fluid is so low that it can’t move anymore.

What causes a car to not shift into gear?

These markings will show when your transmission fluid is low when the fluid on the end of your dipstick covers no more than the “Low” end of the spectrum. Low transmission fluid levels can cause your transmission to not shift into gear.If the fluid is low, fill the transmission fluid reservoir with transmission fluid approved for your car.

When did Pontiac stop making the Bonneville engine?

This engine was used from 1995 until it was retired from the Bonneville in 2003. In 1997, Pontiac made a 40th Anniversary Edition to mark the 40th year of production of the Bonneville. Pontiac made six models: the SE, the 40th Anniversary SE, the SSE, the 40th Anniversary SSE, the SSEi, and the 40th Anniversary SSEi.

What kind of body style does the Pontiac Bonneville have?

The Bonneville had new “Monocoque” styling and was offered in three body styles, a pillared four-door sedan, four-door hardtop sedan and two-door hardtop coupe.

What kind of carburetor does a Pontiac Bonneville use?

The 389 cubic inch plant was replaced with 400 cu in (6.6 L) one, and the 421 cubic inch plant was replaced with a 428 cu in (7.0 L) one. As per GM’s internal edict, the multi-carburation setups found on earlier cars were replaced with the new Quadra Jet “spread bore” carburetor.

When did the Pontiac Bonneville 40th anniversary come out?

In 1997, Pontiac made a 40th Anniversary Edition to mark the 40th year of production of the Bonneville. Pontiac made six models: the SE, the 40th Anniversary SE, the SSE, the 40th Anniversary SSE, the SSEi, and the 40th Anniversary SSEi. The 40th Anniversary SSEi is the rarest model with a total production of 637 units.

Why is my transmission not working in my Pontiac Grand Prix?

Once the transmission gets warm, it revs engine and shifts hard through 1st, 2nd and 3rd gears. Once a speed of 45mph+ is reached the car is fine. Solution, replacing solenoid and having the valve checked out at as well. Transmission began slipping then stopped pulling in any gear. Diagnosed as the Transmission Pressure Control Solenoid.

How does the third shift cable work on a manual transmission?

Moving your shifter left or right pushes or pulls the other cable, moving the shifter assembly up and down. If you have a six-speed manual transmission, your vehicle may have a third shift cable that moves a lock-out lever.

What happens when the shifter cable is out of adjustment?

If the cable is out of adjustment, you’ll experience the same symptoms as you would if the cable was stretched. If the transmission is stuck in any gear except neutral or park, and is equipped with a park-neutral safety switch on the interior shifter assembly, the vehicle will lunge forward or backward if you try to start the engine.

Is there a problem with the third gear on a Pontiac Bonneville?

Drive and 3rd gear won’t engage. 1st,2nd and reverse does. Problem moving to third and fourth gear, slows down in third and fourth gear, however no problem in 2nd or 1st gear. Pontiac Bonneville starts shifting hard from take off once driven for awhile or after driving at slow speeds.

How does a car shift from gear to Park?

What’s the problem with the transmission on a Pontiac Grand Prix?

Is there a car that won’t shift into overdrive?

Transmission won’t shift into overdrive anymore. Had transmission replaced and currently have 100,000 miles on it. Worked fine for about 50,000 miles and now won’t go into overdrive. I still get 20 to 23 mpg, but used to get 23 to 28 mpg.

What to do if your transmission is not shifting?

If the fluid is good and the transmission has been serviced before, then the clutches inside the transmission are slipping and it will need either rebuilt or replaced. If you need further assistance with your gears slipping on acceleration, then seek out a professional, such as one from Your Mechanic, to help you.

Why is my transmission so hard to shift?

A hard to shift transmission problem is usually due to the car transmission declining to move gears. It could either be to change from 1 st to 2 nd gear or to change from 2 nd to 3 rd gear. Whichever one you encounter is usually very annoying and can make your driving experience highly unpleasant and can even result in an accident.

How does acceleration affect the gear transmission system?

The issues with acceleration can lead to gear transmission problems as the ECM doesn’t get the correct information about the acceleration. This leads to incorrect shift points which can cause both early or delayed shifts.

Navigation