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Monday, June 30, 2008

my car is over heating and i put in a new thermerstat

Question: I have a 1992 Chevrolet Cavalier and my car is over heating and i put in a new thermostat and i changed the two radiator hoses but it still over heats and smoking. Already Tried: changed the thermostat replace both radiator hoses Answer: If the some is coming from the exhaust, then you have a blown head gasket. If the smoke is coming from the engine, you have a leak... you will need to have a pressure test performed to find the leak. most likely the radiator or water pump as they are the most common. If the no smoke, just gauge going too high, make sure the fan is coming on. Engine Overheating Diagnostics

Saturday, June 28, 2008

Why do tire pressure monitor show "0" for the LF tire?

Question: I have a 2005 Yukon Denali and the "check tire pressure" continues to show. We manually checked pressure and all tires are 33 to 34 lbs. The monitor shows "0" for left front tire and we can not get it to reset. Already Tried: Reading manual and re-setting monitor with buttons on steering wheel. Answer: This is an indication of a failed sensor in the wheel. Have it replaced. Should run you about $110.00

Friday, June 27, 2008

The AC is only blowing out the defrost vents

Question: The AC is only blowing out the defrost vents and not the front AC vents. What could be the problem?Optional Information: 2001 Jeep Grand Cherokee Answer; Automatic Climate Control: This is a common issue with the the Grand Cherokee's. This is caused by a failed electronic actuator that controls the mode(directional) door inside the air flow box mounted under the dash. Removal of the dash is required for this repair and can take up to 13 hours of labor. I do recommend having a dealer do this for you unless you are a seasoned mechanic. Manual Climate Control: A vacuum line going to the mode(directional) door manual vacuum actuator inside the air flow box mounted under the dash has cracked or the actuator has failed. Removal of the dash is required and can take up to 11 hours of labor.

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the alarm keeps going off

Question: I have 95 993 that sat for while. Went out to start it - dead. Recharged battery, reinstalled, but the alarm keeps going off when I connect the battery terminals. How do I disable the alarm? Answer:

What you need to do : 1) Insert Ignition Key and turn it to the "ON" position (not start) 2) While leaving the Ignition key in the on position, connect the battery. 3) Move key to "start" and allow the engine to start.

With the key in the "on" position it allows it to synchronize with the engine computer when you connect the battery.

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Gas Prices - Should I worry?

Gas prices are moving upward and prices of goods along with it. Should we be worried and panic. No, not really! There are some simple things you can do to help lower your costs for fuel but ultimately the price of just about everything is destine to go up no matter what you do. What one needs to do depends on the ability to pay but this simple tips will help you save money at the pump aside from the obvious.... don't drive as much as you used to.
  1. If you drive a 1996 or newer vehicle, use the lowest octane fuel. These vehicles have an on-board computer with sensors that will allow the use of low octane fuel without causing damage to the engine.
  2. Make sure to replace the engine air filter and fuel filter to help optimize fuel efficiency.
  3. If the "Check Engine Light" is illuminated, Get the repairs done to make it go out. It may seem to run fine, but at a cost of loosing miles per gallon it may be costing you as much as $10.00 a day depending on how far you drive.
  4. Keep Your Tires Properly Inflated - Underinflated tires require more energy to roll, which translates into more frequent fill-ups. You can improve your fuel economy by about 3.3 percent if you keep your tires inflated properly, according to the DOE.
  5. Drive Sensibly - Aggressive driving (speeding, rapid acceleration and braking) wastes gas. It can lower your gas mileage by 33 percent at highway speeds and by 5 percent around town.

Thursday, June 26, 2008

My key will not shut off all the way

Question: I am a young mechanic and my key will not shut off all the way and release from the ignition in my 2004 Pontiac Aztek I have already tested relays and replaced the shift interlock can you tell me what is going on please? Answer: If you look under the ignition on the column you will see a little hole with a rubber plug in it. Remove the plug and if you stick a small screwdriver up in that hole you should be able to get the keys to release. That hole is there for a manual key release. A hint of what to check, there could be damaged wires going to the gear selector in the center console. Or the ignition switch itself could be the problem. This is a very common problem, and the fixes vary from wiring to ignition switches to dealers wanting to replace entire columns. Good luck but the manual release should get you going for now.

Wednesday, June 25, 2008

Grand Cherokee 4.0 has a stalling problem

Question: My 1997 Jeep Grand Cherokee 4.0 has a stalling problem. I have checked the basics (plugs, coil, rotor, crank pos sensor). When it stalls it stops like it was turned off. will often restart and run OK for a day or so, sometimes a few weeks Answer: If the crank position sensor has been replaced. then with the switch of type situation it usually comes down to a bad pcm or a 5 volt sensor feed shorting. the main places I look for a short are the back corners of the head. at the area of the distributor and the oxygen sensor wires specifically the rear o2 hitting the drive-shaft.

Tuesday, June 24, 2008

Service engine light on 2000 Mitsubishi Galant

Question:
Service engine light on 2000 Mitsubishi Galant came on. I have a little under a 1/2 tank of gas. It suddenly started choking about 5 months ago periodically when i press the gas pedal then later that afternoon the check engine light came on. Already Tried: Clean the fuel line. Change oil. Put premium gas.
Answer:
The ONLY way to know why the check engine light came on and most likely the cause of your issue it to Extract the codes with a Scan Tool. This can be done for FREE at Autozone.