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Thursday, August 23, 2007

2005 Saturn ion No Start

Question: Saturn ion 2005 problem starting-every three or four starts, the lock symbol shows up and car will not start, panel, headlamps, acessories are operating, but starter seems locked out. After 4 minute wait, it usually starts. Why? Optional Information: 2005 Saturn 10n 3 2.2L4 Answer: This is a common issue with this model. You will need to have the ignition switch replaced and that will take care of it. As of today there is not a recall issued but save your receipt so you can get reimbursed if they do decide to issue a recall.

Friday, July 27, 2007

Crank Seal Is Still Leaking How Do I fix it ??

I have a 1990 Mitsubishi Mighty Max, 3.0 V6. I have an oil leak at the front crank pulley. I have replaced the crank seal and still have a leak after the motor warms up. Do you have any ideas of the problem I am facing.
What you will need is a speedy sleeve. When the crank seal wears a groove in the crank you need to install a speedy sleeve on teh crank so the new seal has a new un-grooved surface to seal itself against. You should be able to purchase one at your local auto parts distributor.

Tuesday, July 24, 2007

Automotive Questions and Answers

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Saturday, July 07, 2007

Automotive Air Conditioning

No air coming from air conditioning vents Check the air conditioner fuse and replace as necessary. Air conditioner system discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary. Air conditioner low pressure switch defective. Replace switch. Air conditioner fan resistor pack defective. Replace resistor pack. Loose connection, broken wiring or defective air conditioner relay in air conditioning electrical circuit. Repair wiring or replace relay as necessary. Air Conditioner blows warm air Air conditioner system is discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary. Air conditioner compressor clutch not engaging. Check compressor clutch wiring, electrical connections and compressor clutch, and repair or replace as necessary. Water collects on the interior floor when the air conditioner is used Air conditioner evaporator drain hose is blocked. Clear the drain hose where it exits the passenger compartment. Air conditioner evaporator drain hose is disconnected. Secure the drain hose to the evaporator drainage tray under the dashboard. Air conditioner has a moldy smell when used The air conditioner evaporator drain hose is blocked or partially restricted, allowing condensation to build up around the evaporator and drainage tray. Clear the drain hose where it exits the passenger compartment

Friday, April 27, 2007

Secondary Air Injection Code P1411

OPERATION The Secondary Air Injection (AIR) system is an electronically controlled system. The system diverts secondary air upstream to the exhaust manifold check valve or downstream to the rear section check valve and catalyst. The system will also dump secondary air into the atmosphere during some operating modes. TESTING Normally Closed Air Bypass Valve Functional Test Disconnect the air supply hose at the valve. Run the engine to normal operating temperature. Disconnect the vacuum line and make sure vacuum is present. If no vacuum is present, remove or bypass any restrictors or delay valves in the vacuum line. Run the engine at 1500 rpm with the vacuum line connected. Air pump supply air should be heard and felt at the valve outlet. With the engine still at 1500 rpm, disconnect the vacuum line. Air at the outlet should shut off or dramatically decrease. Air pump supply air should now be felt or heard at the silencer ports. If the valve doesn't pass each of these tests, replace it. Normally Open Air Bypass Valve Functional Test Disconnect the air supply hose at the valve. Run the engine to normal operating temperature. Disconnect the vacuum lines from the valve. Run the engine at 1500 rpm with the vacuum lines disconnected. Air pump supply air should be heard and felt at the valve outlet. Shut off the engine. Using a spare length of vacuum hose, connect the vacuum nipple of the valve to direct manifold vacuum. Run the engine at 1500 rpm. Air at the outlet should shut off or dramatically decrease. Air pump supply air should now be felt or heard at the silencer ports. With the engine still in this mode, cap the vacuum vent. Accelerate the engine to 2,000 rpm and suddenly release the throttle. A momentary interruption of air pump supply air should be felt at the valve outlet. If the valve doesn't pass each of these tests, replace it. Reconnect all lines. Air Control Valve Functional Test Run the engine to normal operating temperature, then increase the speed to 1500 rpm. Disconnect the air supply hose at the valve inlet and verify that there is airflow present. Reconnect the air supply hose. Disconnect both air supply hoses. Disconnect the vacuum hose from the valve. With the engine running at 1500 rpm, airflow should be felt and heard at the outlet on the side of the valve, with no airflow heard or felt at the outlet opposite the vacuum nipple. Shut off the engine. Using a spare piece of vacuum hose, connect direct manifold vacuum to the valve's vacuum fitting. Airflow should be heard and felt at the outlet opposite the vacuum nipple, and no airflow should be present at the other outlet. If the valve is not functioning properly, replace it. Air Supply Pump Functional Check Check and, if necessary, adjust the belt tension. Press at the mid-point of the belt's longest straight run. You should be able to depress the belt about 1⁄2 in. (13mm) at most. Run the engine to normal operating temperature and let it idle. Disconnect the air supply hose from the bypass control valve. If the pump is operating properly, airflow should be felt at the pump outlet. The flow should increase as you increase the engine speed. The pump is not serviceable and should be replaced if it is not functioning properly.

Wednesday, April 04, 2007

BELTS AND HOSES

Your belts drive critical systems of your car, including your alternator which recharges your battery, your water pump which keeps your engine cool, your air conditioner which keeps you cool, and your power steering pump. If a belt breaks, the effects can range from the simple inconvenience of not having your air conditioning to leaving you stranded in traffic to overheating and ruining your engine.V-belts will typically last three years or 30,000 miles. Serpentine belts will go farther, lasting five years or 50,000 miles. Belts will sometimes show visible signs of age before they break, including cracking, fraying, and glazing. Modern belts often show no visible signs of deterioration before they break, however.
Like belts, hoses harden, split, or soften with age. Sometimes the aging is visible. Often, however, there are no outward signs of problems before a hose bursts or starts leaking. According to one study, internal corrosion caused by electrochemical reactions in the cooling system is the leading cause of hose failure. Hose manufacturers recommend replacing hoses every four years.
Many of the cars on the road today have timing belts. They keep the valves and pistons in your car in synch. These belts take the place of a timing chain. The advantage is that they are lighter and more fuel efficient. The drawback is that they wear out quicker. Like a fan belt, a timing belt needs to be replaced before it breaks. The timing belt needs to be replaced every 50,000-60,000 miles on most cars, but the exact interval depends on the make and model of your car.If you wait too long and your belt breaks while you are driving down the road, your engine loses its coordination. This can have horrible results. Your pistons may hit your valves, causing major damage to the head of your engine. It is common for repair bills to run $1000 to $2000 for this problem. Replacing your timing belt is one maintenance item you never want to skip.

Friday, March 23, 2007

Turns Over But Won't Start

Your running late for work, run out to jump in the car only to hear the engine cranking constantly and Not Starting.....

Once you have calmed down and decided you want to try and narrow down what might be causing the issue , resort to the basics. There are Four things that are required to make an engine run.

  1. Spark - Ignition Spark is needed to ignite the fuel
  2. Fuel - self explainitory
  3. Compression - If there is no compression , the fuel will not burn properly
  4. Timing - you need the first three items all at the right time

If you have Spark, try spraying starting fluid in the engine.. if it runs, consentrate on diagnosing the fuel system.

If you fuel but No Spark, consentrate on diagnosing the ignition system

If you have Spark and Fuel , perform a compression test and check you timing.. you may have a broken timing belt or blown head gasket

Wednesday, March 07, 2007

Oil Changes

Performing your own automotive oil change will save you money!
The most important service to maintain your vehicle is an automotive oil change. Engine oil is the life blood of your vehicle, and if changed on a regular 3000 mile interval, it will keep your automotive engine running for years. While oil keeps things lubricated, the oil filter keeps out the impurities, so the oil filter needs to be changed at every interval. Always consult your repair manual for proper oil quantity and the proper oil filter when performing an automotive oil change. Always remember the most important rule when performing any repair service is SAFETY FIRST!
Most automotive manufacturers will suggest that you do an automotive oil change between 5000 and 7500 miles, but I would only recommend that interval for synthetic oil. The maintenance schedules that they publish have two options, standard and extreme. Most consumers think that the standard schedule is fine no matter where you live, but 75% of the world lives in the extreme, hot,cold,city driving,etc! So lets stick to an automotive oil change every 3000 miles
Let's look at a comparison of paying a shop as opposed to performing your own automotive oil change....
Repair shop: Standard oil change $35.00 to $40.00 Synthetic oil change $65.00 to $85.00
Do it yourself: Standard oil Change $20.00 or less. Synthetic oil change $35.00 or less.

Monday, February 26, 2007

Engine Trouble Code P1345

DTC P1345 Crankshaft Position (CKP)-Camshaft Position (CMP) Correlation Circuit Description This diagnostic trouble code (DTC) monitors the crankshaft position (CKP) and the camshaft position (CMP) signals to determine if they are synchronized. If both signals are not observed by the control module within a narrow time window, the vehicle control module (VCM) will determine that an error has occurred. Conditions for Running the DTC The engine is running Conditions for Setting the DTC When the engine is running, the cam sensor reference pulse is not detected at the correct position relative to the crankshaft position sensor pulse. Action Taken When the DTC Sets The control module illuminates the malfunction indicator lamp (MIL) the first time the diagnostic runs and fails. The control module will set the DTC and records the operating conditions at the time the diagnostic fails. The control module stores the failure information in the scan tools Freeze Frame/Failure Records. Conditions for Clearing the MIL or DTC The control module turns OFF the MIL after 3 consecutive drive trips when the test has run and passed. A history DTC will clear if no fault conditions have been detected for 40 warm-up cycles. A warm-up cycle occurs when the coolant temperature has risen 22°C (40°F) from the startup coolant temperature and the engine coolant reaches a temperature that is more than 70°C (158°F) during the same ignition cycle. Use a scan tool in order to clear the DTCs. Diagnostic Aids Check the following items: A loose CMP sensor causing a variance in the sensor signal Excessive free play in the timing chain and gear assembly Incorrectly installed distributor - 1 tooth off in either advance or retard positions A loose distributor rotor on the distributor shaft A loose or missing distributor hold down bolt An intermittent may be caused by any of the following conditions: A poor connection Rubbed through wire insulation A broken wire inside the insulation