Question about 2004 Ford Crown Victoria

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Car is not shifting into reverse and is no longer keeping track of speed

There is also a grinding noise that started occurring before this happened. Can anyone give advice?

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Possible transmission problem

Posted on Nov 28, 2012

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When your Cadillac shakes when you start it what usually wrong


  • Knowing the warning signs of impending trouble can go a long way toward keeping your car from a highway breakdown.

    You need to develop an awareness of how your car should sound. For instance, when you turn the key to start, the gear like sound of the starter motor engaging should be smooth and sound like an electric motor working hard to crank the engine. If you notice a different sound - more like a grinding - chances are you have a starter motor problem about to happen. Let's say you're driving along and you feel the steering wheel vibrating at certain speeds. The onset of this subtle vibration could tip you off to a tire that needs to be balanced, worn steering linkage or a bulge in a tire that may be about to blow out. In any case, the vibration needs attention. Normally you shouldn't notice the sound of the exhaust system. A sudden change in your car's sound, therefore, isn't something to ignore.

    Suppose you're used to a pleasant hum, then, perhaps after a bump or when starting up the car one morning, there's a loud roaring that sound like a hot rod without a muffler. The harder you press the gas pedal. The louder the noise becomes. A noisy exhaust means the exhaust gases are blowing out under the car rather than at the rear of the car - a dangerous condition. Brakes play their own warning tune. On many cars, a scratching noise coming from the wheels that stops when you stop pressing on the brake pedal is caused by a low-brake warning device. Its purpose is to warn you that you need front brake pads. A loud grinding noise when you step on the brake pedal is an alarm that your brakes need immediate attention. The grinding noise occurs when the brake pads are totally worn away and the metal of the brake pad backing plate rubs directly on the brake rotor.

    Ignoring grinding brakes can be a costly - or even deadly - error. Shock absorbers help keep the car steady and balanced while the wheels roll over bumps and ruts. Their modern counterpart, the MacPherson strut, does essentially the same thing. You might not notice worn shocks or struts when you're simply riding around town. The safety effect of these devices comes into play at higher speeds. When you hit a bump, the tire wants to bounce like a basketball. Worn shocks or struts allow the ties to bounce out of control making steering difficult and braking less effective.

    What you may notice is the car rocking more every time you stop, assuming an almost boat like quality. Old, broken or worn out shocks and struts should be replaced to ensure safe steering and braking at higher speeds. Engine noises are easiest to hear when the car is not moving. Transmission sounds or brake noises usually occur when the car is moving. Pay attention to any new sound and keep notes - how it sounds, when it makes the sound and what difference, if any, occurs in driving when the noise is present - to help you describe it to your service dealer.

May 22, 2015 | Cadillac Cars & Trucks

1 Answer

I'm hearing a grinding noise when shifting gears in my 97 nissan pathfinder. It's not a full blown grind but just a slight grinding noise. It does it in reverse 1st 2nd 3rd and just started doin it in 4th....


check and/or change the transmission oil. Clutch problems are noticeable in 1st and reverse but as all the rest are syncro controlled you really do not need to use the clutch to change them. just get the engine rpms to match road speed and they will slip in. I am thinking a oil viscosity problem because of the colder weather.

Dec 28, 2014 | Cars & Trucks

4 Answers

What is the reason for front grinding when turning


This due to either a worn wheel bearing or a worn front drive arm.

The most common cause of a grinding noise when turning is a worn front wheel bearing. What happens is that the weight of the car is shifted on to that wheel as you make the turn causing the worn bearing to make a grinding noise.

Jun 02, 2014 | 2003 Ford Focus

1 Answer

Grinding clutch


I'm a little confused on your description of the noise. If I understand you correctly It is making the noise when it shifts smoothly into gear but at the same time it makes a grinding noise ? It possibly can be synchronizers if the grooves on the inside of the synchronizers are worn bad enough to where the gear isn't slowing down enough causing a grind as the clutching teeth on the gear mesh with the synchrode and the shift collar.
If it is making noise in all gears except 4th you may have countershaft brgs failing. The power flow in 4th gear goes directly through the mainshaft and has a 1 to 1 ratio. All other gears the powerflow goes through the countershaft causing a load on the countershaft so if you have bearings failing in the countershaft you will hear noise in all gears but 4th.
i hope I understood you correctly .

Jan 18, 2014 | 2002 Subaru Forester

1 Answer

Transmission makes grinding noise when shifting from park to reverse and then to drive


check the linkages from gear stick to gear box may be loose.

Dec 20, 2013 | Cars & Trucks

1 Answer

My 1999 Chevy Silverado 1500 Z71 makes a clunking noise and feels like it got rear ended if I drive it for an hour or so non stop. It seems to be when it shifts from 1st to 2nd gear. I had the ******...


No one can tell you what it is.This is the operating characteristic of your transmission and customer do object to the noise or clunk and dealer discourage the repair. This is TSB 03-07-29-004G. Let me give you a partial copy. INFORMATION
Bulletin No.: 03-07-29-004G
Date: December 15, 2010
Subject: Manual Transmission Operating Characteristics
Cold Operation
Manual transmission operation will be affected by temperature because the transmission fluid will be thicker when cold. The thicker fluid will increase the amount of force needed to shift the transmission when cold. The likelihood of gear clash will also increase due to the greater time needed for the synchronizer assembly to perform its function. Therefore when the transmission is cold, or before it has reached operating temperature, quick, hard shifts should be avoided to prevent damage to the transmission.
Backlash
Backlash noise is created when changing engine or driveline loading. This can occur when accelerating from a stop, coming to a stop, or applying and releasing the throttle (loading and unloading the driveline). This will vary based on vehicle type, build variations, driver input, vehicle loading, etc. and is created from the necessary clearance between all of the mating gears in the transmission, axle(s) and transfer case (if equipped).
Shift Effort
Shift effort will vary among different style transmissions and synchronizer designs. Usually the more heavy duty the transmission, the higher the shift effort because of the increased mass of the components. Shift effort can also be higher in cold weather because the fluid will be thicker. Medium duty transmissions will not shift as quickly as a Corvette transmission. To reduce shift effort, do not attempt to rush the shift - allow the synchronizers to work as designed. Shifting harder will only increase the chance of rushing past the synchronizer leading to grinding while shifting.
Non-Synchronized Gears
Some light duty truck transmissions in 1st gear (creeper-gear) and reverse gears in various transmissions, along with all gears in some medium duty transmissions, may be non-synchronized. This means there is not a mechanism to match input and output shaft speeds to allow for a smooth shift. This function is left up to the driver. This can be noticed if a shift into 1st or reverse is attempted while the vehicle is rolling or before the input shaft stops rotating leading to a gear grind. The grinding can be reduced by coming to a complete stop and pausing for a moment before shifting into the 1st or reverse gear. Some slight grinding can be expected. In medium duty non-synchronized transmissions, the driver must match input shaft (engine) speed to output shaft (driveshaft) speed with every shift. This can be accomplished by double clutching, or by using other methods. If the driver is not able to perform this function properly, there will be gear grinding with each improperly completed shift. Driver training may be required to correct this condition. Clutch brakes are used in medium duty non-synchronized transmissions to allow a shift into gear at a stop. The clutch brake is used to stop the input shaft from spinning, allowing a shift into gear at a stop without grinding. The clutch brake is activated by pressing the clutch pedal all the way to the floor. When the clutch brake is used, it is possible to have a blocked shift with the vehicle stationary. If this occurs, engage the clutch slightly to rotate the input gear to allow the shift. The clutch brake is intended to only be used while at a stop. Care must be taken to not activate the clutch brake while shifting between gears. This could lead to excessive grinding or a blocked or missed shift.

Aug 29, 2011 | Chevrolet Silverado 1500 Cars & Trucks

2 Answers

Manual transmission.at times the car will not shift into first gear.once the car starts to roll it then shifts when forced.Followed by a loud grinding sound.


The "grinding" sound leads me to believe that your clutch is not completely disengaging. Does it also do it in Reverse? First gear and reverse gear is not syncronized. Sometimes it helps to go to reverse, then bring it back to first to keep from having to force the thing into gear. Forcing it will bend the shifting fork inside the transmission. If it has been forced a few times, you may allready have a bent fork. Anyway, if it is also "grinding" going into Reverse, it is time for a clutch.

Jan 27, 2011 | 1998 Ford Escort

1 Answer

Chevy aveo 2007 5door, shift handle feels lose, car goes


if its a 5 speed, yes the shifting is loser than normal cars. the reverse is all jacked up.. if its anything like my 06 aveo when you shift into reverse you have to lift the little circle thing on your shifter up ad act like your putting it into first.. If it grinds try doing it slower. I HATE this transmission. Chevy did a horrible job on picking it. I always grind reverse no matter what

Aug 01, 2010 | 2007 Chevrolet Aveo 5 Hatchback

1 Answer

Car not shifting into second gear


If the car is grinding when going into reverse, you need to have the clutch bled or repaired.

If it goes into reverse with out grinding, I am sorry to tell you your problem is internal to the gearbox. Bad or damaged Syncro

Good luck



Nov 20, 2008 | 2007 BMW 525xi Sedan

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