Question about 2004 Jeep Grand Cherokee

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Engine turns over but won't start; 'Check guages' light then comes on . vehicle in overall excellent condition. replaced battery last month and noticed that the ground wire is loose-still enough juice to turn the motor though. just don't know if it's a relay or bad coil

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Crank sensores are verry common to go bad.

Posted on Aug 03, 2010

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My Perodua Kelisa won't turn over.


Check the battery voltage. It should be around 12.5 volts. Much below that and it might be an issue with the battery.
Another rule of thumb method to check the battery is by turning on the vehicle's lights and starting. If the lights dim considerably when starting, then the battery is likely in poor condition and may need replacement.

Nov 05, 2012 | Cars & Trucks

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Vehicle cluster lights do not come on and starter will not engage when turning the key. Everything else works, just had the wiring harness replaced


Sounds like the key switch. I would check that first.
If everything came on but the engine did not crank I would have said to check the neutral safety switch and the starter.

Sep 04, 2012 | 1999 Oldsmobile 88

1 Answer

Removed battery while replacing thermostat in my Lexus RX 330. After completion I started engine to find that my check engine light was on along with my VSC and Trac Off. Engine is also not idling...


Most vehicles now-a-days come equip with an on board computer. This computer stores and records several statistics about the operation, condition, and overall health of the vehicle. When you remove the battery, this computer is reset. The results can be a loss of oil level records (when it was changed, when it needs to be changed) tire pressure defaults, etc. In addition, as the vehicle is driven, the computer makes adjustments to things like fuel injection on the engine and other active tasks to improve mileage or performance.

When you reset the computer, it reset all the data along with it. This may cause the check engine light to come on as the car no longer knows the status of certain frequently changed or replaced parts. Your traction was probably turned off either as a response to this or because it was the default for the vehicle; seek out the manual for your vehicle and it should tell you how to re-enable this feature. Lastly, the idle may seem rough because you reset the computer and it no longer provides a tailored level of fuel injection. Over time, this issue should resolve its self as the computer learns.

May 16, 2011 | 2004 Lexus RX 330

1 Answer

Engine won't start. apply ((P)) light on


Engine turns over, but will not start
  1. Check fuel level in fuel tank, add fuel if empty.
  2. Check battery condition and state of charge. If voltage and load test below specification, charge or replace battery.
  3. Check battery terminal and cable condition and tightness. Clean terminals and replace damaged, worn or corroded cables.
  4. Check fuel delivery system. If fuel is not reaching the fuel injectors, check for a loose electrical connector or defective fuse, relay or fuel pump and replace as necessary.
  5. Engine may have excessive wear or mechanical damage such as low cylinder cranking pressure, a broken camshaft drive system, insufficient valve clearance or bent valves.
  6. Check for fuel contamination such as water in the fuel. During winter months, the water may freeze and cause a fuel restriction. Adding a fuel additive may help, however the fuel system may require draining and purging with fresh fuel.
  7. Check for ignition system failure. Check for loose or shorted wires or damaged ignition system components. Check the spark plugs for excessive wear or incorrect electrode gap. If the problem is worse in wet weather, check for shorts between the spark plugs and the ignition coils.
  8. Check the engine management system for a failed sensor or control module.
Engine does not turn over when attempting to start
  1. Check the battery state of charge and condition. If the dash lights are not visible or very dim when turning the ignition key on, the battery has either failed internally or discharged, the battery cables are loose, excessively corroded or damaged, or the alternator has failed or internally shorted, discharging the battery. Charge or replace the battery, clean or replace the battery cables, and check the alternator output.
  2. Check the operation of the neutral safety switch. On automatic transmission vehicles, try starting the vehicle in both Park and Neutral. On manual transmission vehicles, depress the clutch pedal and attempt to start. On some vehicles, these switches can be adjusted. Make sure the switches or wire connectors are not loose or damaged. Replace or adjust the switches as necessary.
  3. Check the starter motor, starter solenoid or relay, and starter motor cables and wires. Check the ground from the engine to the chassis. Make sure the wires are not loose, damaged, or corroded. If battery voltage is present at the starter relay, try using a remote starter to start the vehicle for test purposes only. Replace any damaged or corroded cables, in addition to replacing any failed components.
  4. Check the engine for seizure. If the engine has not been started for a long period of time, internal parts such as the rings may have rusted to the cylinder walls. The engine may have suffered internal damage, or could be hydro-locked from ingesting water. Remove the spark plugs and carefully attempt to rotate the engine using a suitable breaker bar and socket on the crankshaft pulley. If the engine is resistant to moving, or moves slightly and then binds, do not force the engine any further before determining the problem.

Dec 07, 2010 | 2003 Lincoln LS

1 Answer

I have a 2002 Highlander and the check engine light just came on. The last 2 times it was the gas cap was not secured properly. I checked this time to make sure it is on tight. I won't be able to get to...


That depends. Usually a check engine light is an indication that something is amiss with one of the sensors in your vehicle. The computer can compensate to some degree for sensor malfunction and sensor drift. Most vehicles have two lights, a check engine light/service engine now light and a check guages light. If you vehicle is equipped with a check guages light this is a warning light for you to check the guages as something is seriously wrong with your vehicle (ie no oil pressure, overheating, low charging condition).

I would monitor your critical guages to make sure they are showing good (oil pressure, temp, and charging system). If the vehicle is running and driving well you should be fine. The check engine light come on in some cars when the car needs an oil change, sometimes it comes on when a sensor is on the fritz, or when you have a missfire situation. It can mean any number of things.

You can also unhook the battery cable for 15-30 seconds and reset the computer. This may clear the light. If the condition that tripped the light is no longer present or it takes a while for the light to come back on I would say your issue is not that serious.

Apr 09, 2010 | 2002 Toyota Highlander

1 Answer

Not Starting


This is gonna be a lenghty diagonsis. Forget about the check engine light for a moment. What do we have : a)Crank no start, b)No crank , c)Starter clicks,d) no clicking . How many miles does the vehicle have? How old is the battery? What condition are the battery cables and starter wires in? The relay,can you find it ? If you can how does its terminals look? Last the ignition switch. Usually this is the culprit with high milage vehicles especially if the key chain the vehicle's key is on looks like that of a jailer's. As you answer all of these questions you will get more clues to the answer . Need the answers to the questions to give you the correct testing procedures. keep me posted we'll get to the bottom of it.

Feb 22, 2010 | 1991 Nissan Maxima

1 Answer

Check guages light comes on after short drive while engine is running, and the car died while driving on I-95 the lights started flickering getting dimmer. the radio would turn off when anything else...


It sounds like the Alternator is actually bad.
One great way to determine this:
Recharge the new battery with a trickle charge overnight. Make sure use remove the wires going to the Battery before recharging.
Replace the Battery Wires.
Get the Vehicle Started.
When it has Started: Leave it Running and Disconnect and Remove the Negative side of the Battery. If the Vehicle dies, it is the Alternator that is bad, and needs to be replaced..
The Battery starts that vehicle, and provides nominal power to certain accessories. The Alternator actual Runs the Engine and Recharges the Battery with a low trickled charge.

Jan 05, 2010 | 1988 Chrysler LeBaron

1 Answer

2003 chevrolet silverado wont start


you need to clean your battery conections, there is likely a lot of corrosion in the positive cable. Put on your rubber gloves and eye protection take out a tooth brush or small wire brush, baking soda, water a small disposable container (butter cup) and an 8 mm or 5/16 inch wrench. disconect the neg battery cable inspect it, remove the "BOLT" it is fitted into the rubber tight but if you push and stretch it it will come out, clean it with the a baking soda and water mix. about 3 table spoons of baking soda to a cup of water, it should be a little thick, but not as thick as toothpaste. scrub till it shines adn rinse with water. do the same for the positive cable, seperate the two cables and clean all surfaces. to reassemble, conect positive side first and neg side last. whala starts every time.

Dec 10, 2008 | 2003 Chevrolet Silverado 2500HD

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