Popular questions

In order to isolate the hard engine start the first test will need to be a fuel pressure and leak down test to see if the pressure is within specifications when the key is turned on and the pressure stays...

Your vehicle uses a high-pressure hydraulic brake booster. It's likely that the pressure regulator sensors that provide the braking assistance are not functioning correctly, providing too much "braking assistance". A professional mechanic, like YourMechanic, can assist with diagnosis of your...

The problem is you have not seated the bearing correctly onto the hub or the hub and axle got damaged when the bearings spun on them. If you cannot tighten the bearings down after putting the tire back on, you...

Having a broken spark plug in the cylinder head is never a good thing. If the threaded part of the plug is in the head then it needs to be extracted in one of two ways. There are special extraction...

Check to see if the starter motor pinion gear is jammed in the ring gear on the flex plate. On the off chance that somehow the transmission is the issue, you can also try disconnecting the torque converter from the...

Hi. Since the reverse lights turn on when you shift into gear, that is a clear indication that the mechanical portion of the shift linkage is working. I believe the shift solenoid inside the transmission might be stuck open or...

The loss of coolant can be determined with a couple tests. The coolant overflow bottle can have a combustion tester put on it. This will allow you to see if there is any combustion getting into the coolant, indicating a...

Hello - the lack of heater function could have 5 causes: the engine is not getting up to correct temperature (center of the gauge) due to a malfunctioning thermostat, the heater control valve is not letting hot coolant into the...

Yes, it depends on how long the car is going to be sitting. Your tires could possibly go bad. A lot of weight is sitting on the tires. It's a good idea to once in a while jack up the...

One of the things that can happen when an engine overheats is head gasket failure. Your engine may sound different when you crank it trying to start it. You may find coolant on one or more spark plugs. A technician,...

Sorry to hear of your misfortune involving your car. In almost all "newer" cars, there are sensors in the passenger seat that are designed to de-activate the passenger side air bag system in case a small child is seated in...

You should have a compression test and cylinder leakage check done on the engine to see if one or more cylinders have low compression, or is leaking compression somewhere. Check that all of the spark plug wires and injector wires...

Hi there. For the speedometer to be malfunctioning, either the vehicle speed sensor (VSS) could be loosing signal or the gauge has a bad resister. Now, as far as the transmission slipping, check the transmission fluid level. If the fluid...

Your engine has an air filter, and it serves to protect the engine of the car from damaging dust, pollen and debris. Your car’s Air Conditioning system also has a filter – called a cabin filter. It serves the same...

Here's the thing--power steering fluid is what gives you power. The pump pumps it, sends the power to the rack, which makes it easy to turn. If it all leaked out and you drive it, it will burn the power...

The fuel mileage range is typically a calculation that your vehicle's computer makes while taking a variety of things into account including your driving habits. Depending on how you drive this can change drastically as you drive. This can also...

Leaving the ignition key in any position (other than "start" of course) has no effect on the starter. The starter solenoid is only energized if the key is held in the start position. I would first check to see if...

Hi, thanks for writing in. Before a quote can be given, the code will need to be diagnosed thoroughly to isolate the cause of the code. On some of these engines the variable valve timing is caused by camshaft mechanisms,...

Hi there: In most cases, the O2 sensors don't impact the transmission's efficiency. However, it can cause acceleration and deceleration issues which can be confused or misdiagnosed as a transmission problem. If the check transmission light came on; you should...

Hello there, thank you for asking about your 1997 Dodge Grand Caravan. You will need to have the vehicle scanned and the fuel pressure tested to isolate the problem to the ignition or the fuel pump. If there is no...