Monday, June 25, 2012

2002 Buick Rendezvous: Add Refrigerant In A/C System?

How much refrigerant to Add.
How To Add Refrigerant.
Should the compressor be running.
When the A/C will start cooling after refrigerant is added.

I suggest getting this job done by proper professional garage tech.The A/C repair shop garage technicians all the required tools to get the refrigerant added to your Air-conditioning System.

I am not saying that you cannot do this task,but to do this you need all basic required tools.

Now For your Queries the solution and reply is as follows:-----------


As soon as you fill the refrigerant.It should start cooling right away. If not then it is still low. If the gauge on your can reads in psi, it should be at 28-35psi with the compressor on.You will have to fill until needle reads in that range.

Please Note If you fill too much refrigerant this can cause damage, which is why at shops they use a recycling machine to evacuate the system and measure that amount, then put that back in plus the needed amount. The procedure tell accurately how much refrigerant/Freon is required to make the system cool.

One more important note the gages on the cans which you buy at a store are not always accurate, which is why i recommend having a shop do it, but if you still want to do it yourself, stop adding when the pressure is between 28-35psi and you should feel cold air immediately with that pressure range, unless there is another issue with the ac system.Like System leak or issue with A/C wiring or circuit.

About how to add refrigerant is just have to connect the refrigerant can to the recharging port and letting the compressor run.


You cannot add refrigerant to the ac system on the low side if compressor is not running as the low side is the suction side and requires the compressor to suck the refrigerant in.If the compressor is not running then, It can only be added thru the high side which requires a recycling machine.

So, to do this at home, you will have to jumper the compressor to come on. To do this, you have to disconnect the harness connector to the compressor, and then run jumper wires from the battery to the compressor.

Once you do this, BEFORE adding refrigerent, check to see if the ac is blowing cold. If it is, then there is an issue in the wiring circuit to the compressor not allowing it to come on.

If it is not blowing cold, then add refrigerent to system until reading 28-35 psi. At that point, disconnect the jumper wires and plug the harness connector back in.

This will let your Air Conditioner blow cold/cooling air.

This details and possibilities will help.
Thanks.


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High Oil Level on Dipstick

It can be the issue of some fluid or diesel leaking into the oil chamber/reservoir.

Inspect the Injectors.Injectors getting old, worn out or cracked.

If the injectors are leaking, that fuel washes past the pistons into the crankcase and raises the oil level.
Usually if that is the case then,you can smell the diesel fuel in the oil if you smell the dipstick.
 If the injectors are not leaking severely you might not, but normally you will smell diesel on dipstick if diesel is leaking.

This is the most common reason on a diesel for this occurance.
But if that's not the case,then inspect the color or oil
If the oil looks milky or sludging, then it will be an issue with coolant, possible headgasket leaking into the crankcase and raising the oil level.

This are most common possibilities that can make/ increase oil level.

Inspecting this possibilities will help.
Thanks.


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http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html

Troubleshoot Car Oil leak?

http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html


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2007 KIA Spectra: A/c Blows Warm?

The Issue:---
At idle mode the A/C starts blowing warm air and Temperature starts raising.

On this issue ,i will say its Cooling fan related issue or its blockage in condenser.And A/C Condenser servicing is required.

In some cases you will notice that if you give gas when vehicle is in park mode the A/C will start giving cool air.Try this too.


The first thing you need to check is that the cooling fans are working. With engine idling and ac on, verify that the fans are working.
If not working, then the fan circuit will need to be tested to see if problem is bad fan motor, faulty relays, faulty ac pressure switch, faulty engine coolant temperature sensor, failed powertrain control module, or short in the wiring harness.

BUT..
If fans work, then condenser has a restriction in it. The condensor looks like a smaller radiator and is located between the radiator and front grille. In that case the condenser has to be replaced and ac lines flushed.

But in most of such cases the issue is related to fan,fan motor or fan control module.


Sounds like the condenser fan is either not operating at correct speed when idling or a restriction in the condenser.

Of the 2, I more suspect the condenser fan. This can be either due to a faulty fan motor or a fault in the fan motor control module.

This possibilities are to be checked.
This will help.
Thanks.


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Sunday, June 24, 2012

Overfilling oil in engine?

What happens if more quarts of oil is added to the Engine then mentioned in owners manual.

Please don't do this or ever try this. You will get your Vehicles Engine seized and damaged.

OR if you have already done this then drain the additional oil out of the reservoir and bring it to required exact capacity.


It will be ok to drive the car to a nearby shop to have the extra oil drained, but IT IS NOT ok to leave it in there for hundreds of miles or thousands of miles till next oil change.
For Example 1 qt extra is enough to damage the piston rings or valve seals or crankcase ventilation system if left in there over hundreds or thousands of miles.

If you are unable to drain it yourself, either have a friend come over and do it, or take to a nearby shop to have them drain the extra qt of oil for you.

Why to make New inventions when its not recommended and suggested.
Get your vehicle properly serviced get regular tune up done.Don't miss any vehicle service recommendation and let your vehicle live like its a new even after few years of its age.


This will help.
Thanks.


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http://repairhelpcenter.blogspot.in/2012/03/complete-car-repair-help.html



Thursday, June 21, 2012

2003 Chrysler Town & Country: OBD Code P0171?

Check engine light code P0171.
This code says p0171 fuel system lean, bank 1 sensor 1.

The Sensor has to be replaced.


The most probable reason for this trouble code is a faulty oxygen sensor.
But before directly replacing O2 sensor i recommend to make sure there is no vacuum leak and also check wiring to the B1S1 O2 sensor.If all this checked ok,then replace the sensor.
Make sure to use a genuine Mopar oxygen sensor as I have seen too many troubles with aftermarket O2 sensors .Use quality parts and branded parts.

For you help:------
Bank 1 is the rear bank, closer to the firewall
Sensor 1 is the upstream O2 sensor ( in the exhaust manifold), that is before catalytic converter.

This details will help.
Thanks.


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2006Ford Explorer: Engine Vibrates and gears slipping?

Feels like gears are slipping also engine shakes while start-up and lack of power while start up.

Its a multiple issue problem.

There are several possibilities that can cause this problem.


It does not sound to be a transmission issue.
When transmission is slipping, you can experience engine RPM goes up while the vehicle speed remains the same or it hardly accelerates.
In this case ,start your troubleshooting  from checking ignition system components such spark plugs and ignition cables. If it has been recently replaced, then it is a good idea to check your fuel system.
It is possible that your fuel pump fails to supply enough fuel to the injectors at times.
You will need to check it for fuel pressure when the problem exists.
Normal pressure should be about 30-40PSI. It could be done with a scan tool as your model has a fuel rail pressure sensor or with a pressure gauge.

This details will help.
Thanks.


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1995 Jeep Wrangler: Clutch Failed?

Clutch stopped working.

On old model cars,its always issue with Broken or loose clutch cable.
But on 1995 Jeep wrangler,

It has a hydraulic operated clutch ,So there cannot be cable issue on this vehicles.On this system,When you depress the clucth pedal you just push the fluid into the slave cylinder that in turn moves the fork with the release bearing. It is possible that you have a leak somewhere in the system so that your master cylinder is empty or air entered the system.
It could also be a mechanical problem like a faulty clutch disc.
Check for fluid level in the master clutch cylinder and if OK, you will need to check it on a hoist just to see what happens when the clutch pedal is depressed.

This details will help.
Thanks.


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2006 Jeep Grand Cherokee: Transmission Over Temp Warning on Dash?

Transmission and its related components needs to be checked/inspected.

First of all, make sure transmission fluid level is OK.

This warning message is displayed on control panel dash because for some reason computer does not receive transmission temp information from the sensor and that is why you can see warning and also in some cases unusual gear changing will be noticed.
I recommend you to  monitor transmission temperature with a scan tool when the problem exists and if it shows something abnormal, then wiring to the temp sensor should be inspected.


It is also a good option to scan your Powertrain Control Module for trouble codes just to see if it sets any codes for a transmission temperature sensor.
The transmission temperature sensor is a part of the transmission solenoid assembly that is located inside the transmission. It could an intermittent wiring issue caused by a bad contact somewhere within connectors.

This details will help.
Thanks.


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1999 Chrysler Cirrus: 8 IGN Fuel Starter Fuse Blows?

There is a short in wiring or over draw of current causing the fuse to blow.
Few basic testing and inspection is required.

This fuse protects several circuits and components so you will need to determine which one causes it to blow.

Try is testing procedure to confirm the fault:--------

  • Try to remove the fuel pump relay and crank for some time, then check if the fuse is still OK. if it is OK, then your fuel pump may draw too much current causing it blow. If the fuse blows even with the fuel pump relay removed, then your starter motor could be the reason/ 
  • There are several other components powered via this fuse, so you may want to remove the following fuses from the junction block ( instrument panel fuse block) : F17, F14, F15 . Then see if it blows when you start it
  • Try to remove the starter motor relay or just disconnect the small wire from the starter. if then Fuse is OK, then your starter appears to draw too much current.
  • The starter solenoid could be the reason if takes too much current.

The fuses located in the dash fuse box. But start from removing the fuel pump relay and then starter relay.
This details will help.
Thanks.

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2007 Jeep Wrangler: OBD Error Code P2704?

Check Engine light code P2704.
Its a transmission related error code.


P2704 (INADEQUATE ELEMENT VOLUME 4C) trouble code usually means there is a mechanical problem within the transmission.
You computer just monitor a clutch volume index (CVI) and when it sees it is out of range, it just sets a trouble code.
You can check and update your computer software( if it is available) but it won't fix this trouble code as it is a mechanical issue.
Below is the description and possible causes:
Theory of Operation
The volumes of the transmission fluid needed to apply the friction elements are continuously monitored and learned for adaptive controls. As the clutch friction material wears, the volume of fluid needed to apply the clutch increases. Certain transmission mechanical problems can cause near-zero learned volumes resulting in setting a DTC.
Some possible reasons
BROKEN 4C RETURN SPRING OR DISLODGED SNAP RING
BROKEN 4C ACCUMULATOR SPRING(S)
HYDRAULIC LEAK IN THE VALVE BODY
TRANSMISSION SOLENOID/TRS ASSEMBLY
POWERTRAIN CONTROL MODULE (PCM)

This possibilities needs to be checked.
This will help.
Thanks.

Multiple Obd Codes on 1999 Buick Century Custom?

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2006 Chrysler 300C: Fog Light Blows?

Right side fog light bulb blows out repeatedly.Bulb is new,but still blows out in few minutes.

In most cases its short in wiring issue.


Either its due to problem with  Bulb quality ( the most common problem nowadays)
OR its, Too much voltage in the system
If you had a voltage problem, then you would have several blown bulbs as they are all connected to the same vehicle system and get the same voltage .
Test the voltage to confirm the issue.
If you have a multimeter, then you can check the system voltage by connecting you tester at the battery terminals. You should see something between 12,8v-14,8v with the engine running.
Make sure you use some known brands for bulbs like : Osram, Philips, Wagner, Silvania.
Make sure there is a good contact within the bulb connector as well.If the socket where bulb fits is dirty or wet,then turn the engine off and clean the socket with garage cloth.


In many such cases its seen that most common reason for voltage fluctuation is a faulty battery even though it may start the car.
Make also sure battery terminals are clean and tight. You will also need to check body and engine ground, thick wire connection at the back of the alternator, thick cable at the power distribution center( fuse box).

This details will help.
Thanks.


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Sunday, June 10, 2012

2006 Ford Freestar: Misfire on Cylinder Number 2?

Misfire issues on Cylinders.

Test and inspect the plug wires.Also Get Fuel pressure tested.It should be 55 psi.Or near to it.




Make sure there is good spark jumping from the coil to the #2 cylinder wire. If the coil checks ok, there are a couple of other things to check. First- take an Ohms reading for the injector. Unplug the electrical connector, and take a reading across the 2 blades on the injector. If the reading is not between 11-18Ohms, the injector will need to be repalced. If the injector checks ok, test for air leaks at the base of the intake around cylinder #2. If these all check ok, you will then need to run a cylinder compression test.


This details will help.
Thanks.



Engine Misfire codes on Chevrolet Malibu?


Misfire on cylinder 4?

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Car misfires and error code P0306 and P0303 is shown?

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2004 Ford F150: Engine Misfire and Lean Code?

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1995 Toyota LS: Misfire at idle or low RPM

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2005 KIA Sorento: Throttle position sensor Programming?

No its not needed.
If your new TPS is not getting detected then try readjusting it.

After replacing the TPS, it does not need to be "programmed" or "put on a computer" per say. It sometimes will need to be "adjusted". To do this, you will need a scan-tool that can read RPM's. With the scan-tool installed, loosen the mounting bolts on the TPS and slightly rotate it until the RPM's read around 800 (+/- 100 is fine).

This details will help.
Thanks.


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Service engine soon Light Turned OFF after Jump Start?


The reason the light went out after the jump start, is because when the system loses battery voltage, the "clears" the trouble codes from the on-board computer. Once the computer "re-boots" itself, and re-checks all the systems, it will see the fault again, and re-set the Check Engine light. So, it's the same problem, it just took the on-board computer a little bit to re-evaluate the problem after the power loss.


Actually, When the Check Engine light comes on or Service engine soon light comes up, this is the Engine ECM way of telling you there is a problem in one of the monitored systems. Unfortunately, there are literally number of parts and sensors monitored in various systems, and to take a "guess" as to which part/sensor in which system is faulty, is virtually impossible.

However, if you are not experiencing any drivability issues such as skipping, stalling, shifting problems, etc, then more than likely, the problem is going to lie in the EVAP (emissions) system.

Very commonly in many such cases, this could be a faulty, loose or missing fuel cap or even putting fuel in while the vehicle is running.
So to test/inspect the problem

  • Check the cap for any cracks in the rubber o-ring on the underside.
  • Check the fuel filler neck for any signs of chips or debris. 
  • Check under the vehicle, around the area of the fuel tank and the EVAP canister looking for any vacuum lines that have dry-rot cracks, holes or loose/missing connections. 

If these all check out, then the best thing to do at this point is to have the "p-codes" read from the on-board computer. There are 4 digit P codes stored in vehicles computer.
These p-codes are what is used as a "starting point" for the diagnosis and will tell which part/sensor in which system has the fault.
There isn't a Mechanic on the planet that can tell you what is wrong with the vehicle just by "looking" at the Engine Light. Every single Mechanic's first course of action WILL be to obtain the p-codes. Once you get these p-codes you can more accurately and efficiently diagnose the problem and then make the repair. You can have these p-codes read FREE (except in California) at any local "big chain" part store (ie. AutoZone, PepBoys, Advanced, etc).

Once you receive the P-codes,you can troubleshoot the problem further with help of this P-codes.

This details will help.
Thanks.



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http://schematicsdiagram.blogspot.in/2012/02/toyota-camry-check-engine-light-flashes.html

Car jerks while going uphill and Check engine light is ON?

http://schematicsdiagram.blogspot.com/2011/12/car-jerks-while-going-uphill-and-check.html


Check Engine Light Reset Procedure?

http://whoisbyme.blogspot.in/2012/06/check-engine-light-reset-procedure.html

Check Engine Light ON?

http://whoisbyme.blogspot.in/2012/06/check-engine-light-on.html

Intermittent Check Engine Light?

http://whoisbyme.blogspot.in/2012/06/intermittent-check-engine-light.html



For All types of Car models and brands help 
Go to Newly Launched

FREE Car repair guide? 
http://technoanswers.blogspot.in/2012/03/car-repair-guide.html 

& 
Complete Car repair Help FREE? 
http://repairhelpcenter.blogspot.in/2012/03/complete-car-repair-help.html