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Hard Starting 04 BMW X3
Hello there, many common faults will cause your 2004 BMW X3 to have a hard time starting. You have done great in diagnosis and replacing parts that will typically cause this condition. Common causes of a hard start are the...
Question
Cranks but won't start.
This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...
Question
Motor turning over no fire getting anywhere
The engine needs spark, air, and fuel to start and run. Short of an intake obstruction, air is almost always present. That leaves spark and fuel as causes. Any number of components can be at fault. Lack of spark can...
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My car will crank but will not start.
Hi there. If your engine was running just fine and then after sitting for 15 minutes and then all of a sudden the engine will not start up but it cranks, then there could be an issue with the igniter...
Question
Engine noise when cranking. P0011 and P0021 codes
Hi there. The P0011 OBD-II error code indicates that you have an over advanced timing issue, which might be the reason why your engine stumbles for a brief moment when it's cold and first starts. Ignition timing is typically monitored...
Question
There is a strong knocking sound coming from the engine. Today my car won't start. Service engine light is on. It keeps turning over
Hi there. When the crankshaft position sensor is damaged or faulty, it will cause intermittent starting issues, misfiring problems, or might cause the vehicle to fail to start entirely. The best way to resolve this issue is to contact a...
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My car is not cranking - 2002 Buick Century
This may be related to many different possibilities, some of which may be related to a lack of spark and some of which may be related to a fuel delivery problem or a combination of both. For example, if the...
Question
When I turn ignition on no power anywhere. No turnover or crank. Lights don't come on.
Hello there, many faults will cause your 1987 Chevrolet Camaro to not start or have any power. The most common faults are the battery, battery cable, ignition switch, battery terminal, or a wiring harness fault. If the vehicle started properly...
Question
Car wont start, rotor on the distributor will not turn.
Hi there. It is possible that the camshaft gear has sheered off the camshaft and will not turn the distributor shaft. Remove the timing cover and turn the crankshaft and watch the timing chain turn the camshaft. If the distributor...
Question
Making noise when hooking battery cables up.
Hi there. Assuming this was not an issue prior to the radio installation. This would lead me to believe you have inadvertently tied into the starter solenoid signal wire with the installation of the radio. Using a test light, probe...
Question
My car engine starting time with a little bit of noise sounds like it came from crankcase. What's the best thing I can do to check?
Hi there. This sounds like a piston slap sound or a bearing sound. When the engine is cold, the piston skirt will be smaller than the cylinder bore and make the piston slap the cylinder wall until it get hot....
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Will not start - 1994 Nissan D21
Hello. Considering the circumstances, it may be wise to take a few steps back to the very basics and do a few tests that may seem redundant. Starting issues are typically simple in nature or an electrical issue. Spray some...
Question
Turn key won't start. When I keep turning the key it will start. Had the starter checked and it was good.
Hi there. It is possible, the ignition switch is at fault for the no crank situation. It could also be the result of, a faulty clutch inhibitor switch manual transmission, a faulty neutral safety switch automatic transmission, a faulty starter...
Question
My truck won't start - 1992 Ford F-150
There are fuses which could be implicated. Computer chips these days are mostly in the PCM (Powertrain Control Module) but it is rare for the PCM to fail. More often the no-start condition is due to a problem in the...
Question
My Volvo hf7 is cranking but it does not start. What is wrong?
Hi there. I see your question is about a Volvo HF7 even when you clicked the Toyota Avalon buttons - I'm will be answering this question as it is associated to the Volvo HF7 vehicle provided. Check the battery cables...
Question
Truck cranks but won't start.
Hi and thanks for contacting YourMechanic. The EFI supplies power to the C/OPN relay. Check the wiring from the EFI and the C/OPN relay for any breaks. Use a digital ohm meter and check for a complete circuit in the...
Question
Won't crank after being driven, have to cool down first then it will crank
Hi there: There are several reasons why your 1996 Dodge Ram might not start when the engine is hot. Some of the common issues include a reduction of volume produced by the fuel pump, spark plugs that are damaged, ignition...
Question
The car has good spark and fuel but won't fire up
Hi there: In most cases, the issue you're describing is typically caused by ignition coil, distributor rotor, or crankshaft position sensor that is faulty, damaged or has an electrical harness that is pinched or damaged. It could also be fuel...
Question
Engine won't run - 2012 Buick Lacrosse
Hi there. Having to use a breaker bar, to free the engine from being locked-up, does not sound promising. Removing the serpentine belt, would eliminate an accessory component (ie; seized alternator) that may be preventing the engine from turning over....
Question
I have discovered four error codes when I diagnosed my car.
Hi there. For all of these lights to appear when going over a bump and can be cleared with a computer diagnostic tool, then there is a loose ground on the chassis of your vehicle. Check the battery cables and...

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