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Showing posts with label brake pedal. Show all posts
Showing posts with label brake pedal. Show all posts

Monday, May 13, 2013

Dodge: Problems & Solutions

Dodge Forum HelpZone

Troubleshooting Solutions For Dodge Vehicle Problems

Dodge 2500 Automatic Transmission

Check Engine Light ON

Rpm Goes Dead


PROBLEM:

1998 Dodge 2500 24 valve. Check engine light on & Rpm goes dead has no power then comes back after min or so.Local Mechanic told could be tps, cps or crank shaft position sensor.

OBD ii codes P0602 & P0222

SOLUTION:

First of all crankshaft sensor on these will in no way effect the running of vehicle, it is only used for the tach and for the transmission, it will not cause it to lose power.
Second thing  on this motor,there is no TPS, but instead there is an APPS means accelerator pedal position sensor, this is attached to the injector pump, where the throttle cable is attached.

Now as per the OBD error code mentioned 

The OBD ii code  P0222 is the one that is most likely causing your problems, it is a code for the APPS, when it loses power, idle issues will be noticed.
You will notice issues like vehicle idles up and down in gear.Out of gear rpm gauge pops up and down like your revving it up.

If you notice such idle issues then replacing APPS is advisable.
The other code P0602 is for the calibration of the ecm, it may be an old code, so clear the codes after replacing the apps and see if any come back

Location Of APPS

Accelerator Pedal Position Sensor Location


APPS is located on the injection pump, where the throttle cable attaches, this is a dealer part and will come with the sensor and the bracket and the throttle lever.
To replace APPS  you will need to pull the throttle cable off, then remove the 4 bolts that hold the bracket and sensor to the pump, then disconnect the sensor and remove it.

Please Note:
There are aftermarket sensors easily available, but they dont come with the bracket and lever, and almost impossible to get calibrated, so use a dealer part for this, they come [pre calibrated, so you just plug and play,and it will work.

See the diagram shown below:

APPS Location Dodge 2500


This will help.


Dodge Durango V8, 4-wheel drive



Dodge starts Only In Neutral

Dodge stalls in Reverse Mode


PROBLEM:

1998 Dodge Durango V'8, 4-wheel drive, won't start in Park but starts only in Neutral,  when  put it in reverse it stalls out.


SOLUTION:

There are few possibilities causing this problem.
  •  The mechanism inside the transmission that operates the neutral safety switch is worn out and will need to be replaced. In out technical language We call it the "rooster comb" because of the way it looks. 
  • As far as the stalling in reverse, it can be transmission torque converter problem.

But to confirm if its transmission issue or not,you will need to follow the simple test.

Try this if you hold your foot on the throttle, will it stay running when you put it in reverse?
If you first hold the throttle a little and then put it in reverse with your foot on the brake does it still stall out?

If yes then its issue with transmission torque converter.

On such issues vehicle will stall abruptly,like driving a car with a manual transmission and just let the clutch out without giving it any throttle.

The problem is the transmission's lock up torque converter stuck in a partial or full lock up mode. 
At Our Auto Repair Garage we see such problems every now and then, and the only best possible way to fix it is to pull the transmission and replace the torque converter. That will take care of the stalling problem. While the transmission is out, you can open it up (pull the pan and valve body) and replace the rooster comb. That will fix the no start in park problem.


Dodge Dakota ext cab V6

Gas gauge is stuck on 1/8 tank

PROBLEM:

1994 Dodge Dakota 3.9 V6 Auto 22 gal tank, Ext cab. 2WD. Gas gauge is stuck on 1/8 tank.


SOLUTION:

To diagnose the problem, you ned to check the resistance of the sending unit.

As per Service manual the actual range of resistance of the sender is 10 ohms when full to about 100 ohms when empty. 

If the resistance is not within specs then, the fuel sending unit is bad and will need to be replaced.

Fuel Sending Unit is located in the Fuel Tank.
It is integrated with the fuel pump unit.

To Test the resistance you will need voltmeter.
Keep voltmeter settings on OHMS reading.

Ground the sender wire (Dark Blue wire) while watching the fuel gauge.
It should go to full when grounding the sender wire.

You can access the wires going up to the top of the tank from under the vehicle

See the Fuel Sending Unit Wiring Diagram Shown Below:

Fuel sender wiring diagram


To Remove Fuel pump assembly 
You can access the pump by thus lifting the bed or dropping the tank.
It's 4 bolts on each side of the frame, disconnect the tail lights an the filler opening.

You can get fuel pump assembly here


2007 Dodge Ram 1500 4x4 


Transmission stuck in limp mode


PROBLEM:

2007 Dodge Ram 1500 4x4 with 5.7 is throwing OBD ii code P0750


SOLUTION:

OBD Code P0750 is for Shifting Solenoid A.
Vehicle trans is stuck in limp mode.

How To Replace Shift Solenoid A:

The solenoid is fitted in a assembly known as the solenoid pack. This assembly contains all of the shifting solenoids for the transmission. You cannot change just one solenoid. The whole solenoid pack will need to be replaced. 

In order to do that, 

  1. The transmission oil pan will need to be removed. 
  2. Then the valve body is removed.
  3. And the solenoid pack which mounts on top of the valve body can be replaced. 

Difficulty Task To Do This Job:

If you have removed and replaced valve bodies before, then this should be fairly easy for you. If not, then you may want to have a shop that has done thus before take care of this. It is not super hard, but you will need a clean dust/dirt free area to do that. 


2005 dodge caravan


Hard Brake pedal


PROBLEM:

2005 dodge caravan, hard brake pedal and little braking. 
Problem Started after installing  new pads and bled brake lines. Can't get the pressure back right. 
Brake pedal stays hard and low braking ability.
Braking was ok before brake pads replacement.

SOLUTION:

This problem is noticed because brake line is not bled properly.There is some air gap in between the brake lines and that's causing the problem.

Its Suggested to bleed the whole system again.

The basic procedure To Bleed Brake Line is as follows:
  1. Apply pressure to pedal.
  2. Open bleed valve.
  3. Tighten valve as pressure releases from pedal.
Please Note: You should not  loosen bleeders to depress the calipers, On ABS systems this is a no no. It allows air into the system
Too late now so have to work the problem
Do bleeding in the order . Its difficult to do this on ABS system.

  • When bleeding and pushing pedal all the way to floor very hard can damaged it.

Now see if the brake pedal works fine or its brick hard to press.

If the brake is still very hard then its issue with Brake booster assembly.

Brake booster is the system behind the master cylinder.

There is a large hose going to it. You have to remove that hose, engine running to be sure good vacuum.If so, this is what you want, 

If you do the bleeding, still little braking and hard pedal, then you may have a failed brake booster
It is what gives the power brakes. 

I suggest to re-bleed, bleed each wheel real good,as mentioned above.


CAUTION: Before removing the master cylinder cover, thoroughly clean the cover and master cylinder fluid reservoir to prevent dirt and other foreign matter from dropping into the master cylinder fluid reservoir.

NOTE: The following wheel sequence should be used when bleeding the brake hydraulic system. The use of this wheel sequence will ensure adequate removal of all trapped air from the brake hydraulic system.

Left Rear Wheel
Right Front Wheel
Right Rear Wheel
Left Front Wheel

You must bleed in order or you will not center the ABS spool valves after that.
If that does not work, brake booster is highly likely the problem

Tuesday, January 10, 2012

Brake pedal is pulsating and vibrating?

Many casr drivers notice this problem.
First see if you notice.............
Any of the rotors over heating? Have you check the run out of the rotors front and rear? Do you have the accumulator style brake booster or a vacuum chamber?

The other possibilities that can cause this problem is faulty front discs , calipers and pads.
I have seen warped new rotors :-( The run out on the rotors is the only thing that causes pulsation in the pedal as long as it is not the ABS coming on prematurely but this has a different feel. If the pulsation is transfered into the steering wheel then it has to be focused on the front rotors or dirt and rust behind the rotor and on the face of the hub. If not felt in the wheel then it has to be in the rear rotors. These are very difficult to bleed and usually require a scan tool to active test power bleed. Make sure there is no air in the system.

This details will help.Thanks.

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See below latest brake related solved problems :-----------

Abs and service light comes on?

All types of brake problems and repairs

http://howtobyme.blogspot.com/2011/11/abs-and-service-light-comes-on.html

 

ABS light stays on but brakes work fine?

http://howtobyme.blogspot.com/2011/11/abs-light-stays-on-but-brakes-work-fine.html

VCS maintenance required on Toyota Camry?

http://howtobyme.blogspot.com/2011/11/vcs-maintaince-required-on-toyota-camry.html

VCS and ABS lights go on and off intermittently on Lexus?

http://howtobyme.blogspot.com/2011/11/vcs-and-abs-lights-go-on-and-off.html

ABS & Brake lights warning indicator steady on dash and speedometer not working for Dodge Ram?

http://howtobyme.blogspot.com/2011/11/abs-brake-lights-warning-indicator.html

E-brake is stuck down on Ford Focus?

http://schematicsdiagram.blogspot.com/2011/12/e-brake-is-stuck-down-on-ford-focus.html

Brake warning light comes on and car will not start intermittently?

http://repairhelpcenter.blogspot.com/2011/12/brake-warning-light-comes-on-and-car.html

When the car stops, abs pump turns ON?

http://howtobyme.blogspot.com/2011/12/when-car-stopsabs-pump-turns-on.html

Where is Power Brake Booster located on 1995 Lincoln Town Car?

http://howtobyme.blogspot.com/2011/12/where-is-power-brake-booster-located-on.html

Sometimes ABS light comes on while Driving?

http://howtobyme.blogspot.com/2011/12/sometimes-abs-light-comes-on-while.html

How Anti-Lock Brakes Work?


Brake System Troubleshooting?

http://technoanswers.blogspot.com/2011/11/brake-system-troubleshooting.html

Car Brake lines have no pressure?

http://schematicsdiagram.blogspot.com/2011/12/car-brake-lines-have-no-pressure.html

Car Brakes Dragging?

http://repairhelpcenter.blogspot.com/2011/12/car-brakes-dragging.html

Car Brakes grabbing?

http://repairhelpcenter.blogspot.com/2011/12/car-brakes-grabbing.html

Car Brakes Making Noise?

http://repairhelpcenter.blogspot.com/2011/12/car-brakes-making-noise.html

Car Brakes Pulling?

http://repairhelpcenter.blogspot.com/2011/12/car-brakes-pulling.html

Pulsating Brake Pedal?

http://repairhelpcenter.blogspot.com/2011/12/pulsating-brake-pedal.html

Spongy brake pedal?

http://repairhelpcenter.blogspot.com/2011/12/spongy-brake-pedal.html

Hard Brake Pedal?

http://repairhelpcenter.blogspot.com/2011/12/hard-brake-pedal.html

How to Disconnect Power to EBCM on Pontiac Grand Prix?

http://schematicsdiagram.blogspot.com/2011/12/how-to-disconnect-power-to-ebcm-on.html

Where is ABS/TCS module located on 2005 Cadillac Deville

http://schematicsdiagram.blogspot.com/2011/12/where-is-abstcs-module-located-on-2005.html

How to Replace Power Brake Booster on 1996 GMC Jimmy?

http://schematicsdiagram.blogspot.com/2011/12/how-to-replace-power-brake-booster-on.html

Isuzu Trooper Shifts hard and Engine Revving in stop?

http://schematicsdiagram.blogspot.com/2011/12/isuzu-trooper-shifts-hard-and-engine.html

What is Brake Bleeder Screw?

http://repairhelpcenter.blogspot.com/2011/12/what-is-brake-bleeder-screw.html

How to replace car Brake Cable?

http://repairhelpcenter.blogspot.com/2011/12/how-to-replace-car-brake-cable.html

How to Replace Brake Disc?

http://repairhelpcenter.blogspot.com/2011/12/how-to-replace-brake-disc.html

ABS motor keeps running?

http://schematicsdiagram.blogspot.com/2012/01/abs-motor-keeps-running.html

Anti-lock brake light stays on all the time?

http://technoanswers.blogspot.com/2012/01/anti-lock-brake-light-stays-on-all-time.html



Saturday, December 17, 2011

Hard Brake Pedal?

Go through list of possibilities that can cause hard brake pedal issues on vehicles.

You notice problems like :----

  • Brake pedal very hard to push down.
  • It becomes stiff. 
  • The brake pedal hard to push or press.
  • Hard pedal intermittently when braking.
This problems are noticed by many car users.

The driver's complaint of a hard pedal normally indicates a problem with the power brake booster.A brake pad or shoe that is sticking, causing the brake fluid to boil. When brake fluid boils, it expands and can cause the hard brake pedal.However it can also be caused by a restricted brake line or hose.Bent brake line or foreign material in the brake fluid. Carefully check the lines and hoses for damage. Feel the brake hoses. If they seem to have lost their rigidity, the hose may have collapsed on the inside and this is causing the restriction. Restrictions can also be caused by frozen caliper or wheel cylinder pistons.

Below is the list of possibilities that can cause Hard Brake Pedal:----


  1. Faulty Brake Power Booster.
  2. Worn, Damaged, or Faulty Brake Caliper.
  3. Faulty Brake Master Cylinder.
  4. Clogged, Kinked or Damaged Brake Hose.
  5. Worn, Damaged, or Faulty Wheel Cylinder.
  6. Damaged or Faulty Proportioning Valve.
  7. Brake Pad/Shoe Contaminated With Grease or Brake Fluid.
  8. Brake Pad/Shoe Wet From Driving or Standing in Water.
  9. Glazed or Excessively Worn Brake Pad/Shoe.
  10. Brake Rotor Is Glazed or Warped From Overheating.
  11. Glazed Brake Drum. 
  12. Contaminated Brake Fluid.
Please check both front and rear brake parts and components.
Any of this can be worn out or faulty and that can cause this issue.

Getting this possibilities checked/inspected will help. 

Pulsating Brake Pedal?

Pulsation or vibration is noticed when brake pedal is pressed.A shuddering or jerky stop during normal braking.
Customers will feel a vibration or pulsation in the brake pedal when the brakes are applied if a brake rotor is warped.This usually means a warped rotor or an out-of-round drum .
The faces of a disc brake rotor must be parallel.Check the rotors for runout and parallelism. You can often see warp-age in a brake rotor by simply looking at it. A warped rotor should be replaced and is often caused by improper tightening of the wheel lug nuts. In fact, uneven lug nut torque can cause a pulsating brake pedal.Resurfacing the rotor to restore the faces will usually eliminate the pulsation (unless the rotor is bent or is badly worn and has started to collapse in which case the rotor must be replaced).You should be aware that pedal pulsation is normal on vehicles with antilock brake systems (ABSs) when the ABS is working.Pedal pulsation caused by drum warp-age isn't as common, but it can happen. Overheating can also cause rotors to warp. Overheating may be the result of severe abuse or dragging brakes.

Getting this possibilities checked/inspected will help.

If you need dis-assembly or replacement instructions for any other auto/car part, or you want to ask question related to your car/truck jeep problem then please leave the comment with your details, so I can provide you the required instructions and solutions.


For more brake related help solutions,see the list below:---

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