Popular questions

Hello. Pinion bearing seals can leak due to normal wear or as a result of excessive pinion bearing play. A growling sound can indicate a worn pinion bearing as well. If the noise changes during acceleration, the cause is most...

Hello there. You will need to see if the engine valve covers are leaking oil and running back on the exhaust or if the transmission is leaking oil onto the exhaust near the dipstick tube where it goes in the...

Hi there. There are a couple of different reasons why a single cylinder would be misfiring. A common issue would be a lack of continuity throughout your spark plug coil, wire, and plug. Another problem you may be having is...

Hello, thanks for writing in. If the vehicle started back up then it is not likely that the alternator is bad. If the alternator was bad, the battery would have been low and you would not have been able...

Hi there. The neutral safety switch (transmission position switch (sensor)) on the transmission and the engine oil light on the dash have nothing in common. If the neutral safety switch has failed, then the transmission may start in gear or...

Hi there: It's possible that you have damage to your fuel pump, mass air flow sensor or a vacuum leak that is causing your 2002 Dodge Intrepid to stall quickly. The best way to know for certain is to have...

Your thermostat is located in the front of the engine right next to the distributor just above the water pump. I would recommend having an expert from YourMechanic come to your home to -diagnose and replace your thermostat.

The sensor, gauge and wiring should be repaired if there is a reporting fault. The problem is if you leave it as is, you might not get adequate notice were actual overheating to occur at a future point. Overheating of...

Unfortunately this is an issue that has plagued Patriots for years, with apparently no one solution that proved reliable in all cases. However, there are two procedures that have proven effective in a lot of cases: Replace the sunroof seal...

This can sometimes happen when the coolant level is low or leaking. The coolant gets hotter as the RPMs rise. This can cause hot coolant to reach the heater core during high RPMs but not low RPMs. I recommend having...

There are many variations of ignition systems in today's automotive market and a lot of them put out over 20,000 volts. These are the most standard ignition systems used in most engines. There are many differences in the amount of...

Hi there. The P0708 trouble code means that the Engine Control Module (ECM) has detected a malfunction with the transmission range sensor. A mechanic would begin the diagnosis of the P0708 trouble code by finding the manufacturer’s suggested procedure for...

Hey there, thanks for writing in about your 1997 Mercedes-Benz E300. This is also related to your other question regarding the coil springs. As explained, the perch is a structure that supports the coil springs. Often times, when one or...

In order to isolate the cause of the misfire you will need to do an engine compression and leakdown test to make sure the compression is good and no valves are burned. If compression test is good on all cylinders...

Hi. This sounds like the ignition switch has a problem and is not allowing the car to go into park. If the ignition switch is not sending the signal to the neutral safety switch that the key is in the...

A starter like any other mechanical and electrical part is subject to failing sometimes for no apparent reason. However, sometimes this is misdiagnosed as well and often times mistaken for something much more simple like a fuse, relay, or starter...

Hi there. A ticking noise on the front of an engine that comes and goes could be the drive belt tensioner being worn, pulleys out of alignment causing the components to fail making the noise, or the timing belt tensioner...

Hi There, A few different things will usually cause the vehicle to start and then die. A bad ignition coil can cause this if it is beginning to fail, resulting in intermittent starting problems. A dirty or faulty mass air...

Hi there. Once your car starts, the job of the battery is pretty much done. As the engine operates, a drive belt powers the alternator which supplies electricity to all components, systems and accessories. If the alternator is faulty, it...

Hello. Intermittent and random misfires can be caused by many things. If all of those components check out, it may be possible that one of the fuel injectors is dirty or clogged, and is not delivering fuel properly. It may...

The theft system of your vehicle is usually located in the steering column. This is due to the fact that the ignition switch is in this location and one of the major functions of the security system is to disable...

Hello. I strongly suggest checking the starter, alternator and even the new battery to make sure that they are all in working order. Testing those three will give you a better perception of why it's not starting. If you need...

If I am reading your symptom description correctly, the engine died at speed, the Check Engine light came on, and the engine now turns over but won't actually start despite a new battery. First item to check are the...

Hello - you may very well be correct. Given your symptoms, it sounds like you have a blown headgasket. This can be confirmed by checking for low compression between adjacent cylinders, white steam or smoke from the exhaust (smells sweet),...

This concern could be caused by a cracked exhaust manifold. Is the Check Engine light on? If so, a certified, local mechanic, like one with YourMechanic, could diagnose the problem with a scan tool. Due to the poisonous nature of...