Thursday, December 27, 2012

Car Ran over Concrete Divider and Oil leaking

Oil leaking after vehicle got hit from under due to concrete divider .................


These problems are rare,as mostly the dividers are made up to the height,where no driving issues and problems occur.
But sometime due to rash driving or careless driving such problems occur.

On some cases if the vehicles engine support cross member rod gets bent and due to these the divider gets connected to vehicles bottom base and problem occurs.


But if oil is leaking,then there must be some damage got done to the oil pan.Either the pan is got cracked somewhere or there is some hole in the oil pan.It its damaged then oil pan needs to be replaced.
REPLACING OIL PAN

Inspect the oil pan condition visually from under the vehicle in proper day light.


It is not 100% sure that leaking oil is from oil pan.So confirm the area and position on leak.But if it's on the bottom of the engine and it started after hitting a piece of concrete then as per our auto garage repair experience i will say it's almost surely the oil pan.
The oil pan is cast aluminum and on the bottom of the engine.And if get a hard hit,these part can easily get damaged.

Still to confirm the issue, i suggest Before driving the car  make sure the oil level is safe, you can lose enough oil from damage like that to do catastrophic damage to the engine if it's driven with little or no oil. If it's leaking too fast then towing it to a shop may be necessary.We have noticed many major engine failures at our garage,where problem was actually low oil.But customer ignored the low oil indication and last it was major engine failure.

Replacing the oil pan will cost approx $300 range. The shop doing the work may be able to find you a used pan from a junkyard and save you a little money on the part.
But i suggest go with branded and reputable part, instead of  old used or aftermarket parts.


Hope these helps you.
thanks.


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How to Replace an Oil Pan Gasket? 
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html
------------
HOW TO REPLACE AN OIL PUMP 
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html 
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HOW TO CHANGE ENGINE OIL AND FILTER 
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html 
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HOW TO REPLACE AN OIL PRESSURE SWITCH (SENSOR) 
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pressure-switch.html 
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How to Check Differential Oil Leaks and Replace Oil
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-differential-oil-leaks-and.html 
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HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE 
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html 
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HOW TO RESET OIL CHANGE INDICATOR?

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Jeep Grand Cherokee will crank but not start

Check Engine light ON,  Vehicle will crank but not start

2003 Jeep Computer Scan Showed following codes: P0122, P0320 and P1763

As per the error codes mentioned i will provide the details about the codes :----


Starting with  OBD error code P0122 .

  • These code is for the throttle position sensor and won't be related to  no start condition which you are facing. 
  • OBD code P0122 sets when the voltage signal  from the sensor goes to or near 0 Volts. 
  • This code can be caused by the faulty throttle position sensor itself or it's signal wire being shorted to ground. 
  • As per our Auto garage repair experience, i will say that most often it's just the sensor itself and replacing it would take care of the code. 
For your 2003 Year model jeep grand Cherokee  the throttle position sensor is mounted on the back of the throttle body and held on with two Torx screws.Its not very difficult to locate and replace.



Moving to the other error code that is P0320 ...............

The OBD error code P0320 can be related to no start problem.
I will explain with more explanation,to make you understand the occurring of these error code.

Its related to Crankshaft sensor. P0320 sets when the engine controller isn't seeing an input from the crankshaft position sensor but it knows the engine is turning.

As per our garage repair experience i will say .........

  • The crank sensor goes down into the transmission bellhousing at about the 11:00 position.
  • It can be  viewed from behind and it reads off a tone wheel on the flexplate. 
  • The purpose of crank shaft sensor is to read the position and speed of the crankshaft.
  • Another  main  reason of crank sensor is that it calculates the spark, without it's signal the engine can't start. When you start the engine engine cranks and spark plugs provides required spark, and these spark is sensed by crank sensor and it gives signal to engine thast spark is received.
  • But if crank shaft sensor is faulty then it will not sense the spark,even though the spark plugs are working right.
Again this could be the sensor or it's wiring, but it's almost surely the sensor. Crank sensor failures are not uncommon.I will say at our garage we have deal with many vehicle no start issues,due to faulty crank shaft sensor.


Now moving to the another code that is P1763 .............

OBD code P1763 is related to vehicles gear shift issues.

As you have received P1763 code,so first confirm do you actually notice any kind of gear shift issues.


As per our car repair experience i will say the crank sensor won't be related to these other issues. With the TPS or the P1763 you wouldn't really notice a miss. You might notice a hesitation at the exact time the P0122 sets, possibly not.


Related to error code P1763  i will say


The P1763 is indication to monitor the governor pressure transducer in the trans.

  • On your jeep vehicle the trans has an electronic governor using a solenoid and a transducer to control governor pressure for upshift and downshift timing. 
  • For transducer, it is the plastic pressure sensor mounted off to the right side of the valve body, it's just to the right of the filter when the pan is removed. 
This code could be caused by the transducer or it's wiring, but the transducer is a common repair and will almost surely be your issue.

So without your vehicle running,you cannot confirm the actual gear shift issues.

What i suggest, is replace the crank sensor and get it running again.
Then  clear the codes and wait to see if the engine light comes back on.
If the Engine light is again ON,then re-scan the vehicle to see if same error codes are coming up or not.
If yes then governor transducer or the TPS are to be inspected and replaced.
but mostly as per our regular vehicle repair deals i think these codes will get cleared once the vehicle starts running.



Hope these details will help you.
Thanks.



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Sunday, December 16, 2012

No Heat on Nissan

It can be issue with air in coolant system

Bleeding coolant line on Nissan pathfinder



To bleed the coolant system ...................

  • First of all  remove the radiator cap. 
  • Then install the coolant bucket. 
  • Fill the bucket about 1/2 way. 
  • Then raise the front of the car as high as if it were on ramps. 
This way if there is air in the coolant system, the circulation brings it to the highest point.

  • Then turn on the car, and put the heat on speed number 4, recirc mode on, and face mode. 
  • Now on these stage its advisable to  to rev the engine to move the coolant around to get the air out. 
After you have good heat, and little to no bubbles in the coolant bucket.
Then the coolant system is properly bleed. You should have good heat when bleed properly.
Now to confirm that procedure is worked right,( BE VERY CAREFUL) put your hand over the vent and hold it there for 30 seconds, you get a slight burning sensation. That is perfect heat.

These details will help.
Thanks.



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2003 Nissan Pathfinder Cabin Air Filter Replacing

Nissan Pathfinder Cabin Air Filter Removal Procedure


Earlier models before year 1999 , there was no cabin air filter.


The air filters are located behind the glovebox


Step 1: First open glove box, remove the stringer on side, simple step

nissan glove box


Step 2: Flip down the 2 lower plastic pins, then yank them toward center. Pull harder and both pins should be out completely.

golvebox pathfinder


glovebox disassembly


Step 3: Now after that remove 2 screws and get that plastic wood panel out of the way.

pathfinder nissan glovebox



Step 4: There are in total 7 screws,remove all 7 screws.

remove screws


Step 5: There are 2 side screws,other then remove 2 more side screws

nissan vehicle glovebox


Step 6: While for the if 1st time disassembly,where everything is intact removing this panel, need to use some force to remove it out...be careful and pull it out.

replacing nissan glovebox


Step 7....Location of glovebox panel should be down.

car glovebox diagram


Step 8:  Now here don't get panic.Be slow and first remove glove box light fixture, snap and pull, may be check the bulb as well.If its blown,then replace the bulb.Many a time here in these step the bulb gets cracked in pieces while removing glow plug panel out. So be slow.

light fixture glove box


Step 9: Now once these is done,you will see the FAN AMP and the In Cabin Filter.Part number 2 and 3 marked.

cabin filter removal


Now unplug fan amp wire plug connector,

Then remove 2 screws. The AMP should be about to slide out without any trouble.
After that remove filter clip at the bottom. Slide the lower panel 1st, then the upper panel.


See the Cabin Air filter removal diagram shown:-----

nissan cabin filter




These details will help.
Thanks.