Q: Have a dull sounding vibrations every now and again if on a bumpy road or road hump 2003 Hyundai Trajet

Your central gauge cluster shows you a wide range of important information about your car, your engine and your transmission. The tachometer tells you a couple of things. First, it shows how rapidly your engine is turning, which is measured...

The misfire alone is not enough to deem a blown head gasket. The fact that you have the white smoke present along with the misfire is sound evidence that this is the case. The white smoke means you are burning...

I'd definitely start there because the fuel pressure regulator, as the name suggests, detects and regulates the fuel pressure in the system. If it has too high of a pressure, then the regulator has gone bad (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-pressure-regulator). That's a very...

It sounds like you may have a weak ABS wheel sensor and a loose wheel bearing. When you hit the brakes, the sensor losing signal may be causing the ABS to activate. You would need to have the ABS diagnosed...

The speed sensor (https://www.yourmechanic.com/services/abs-speed-sensor-replacement) is important to all of the systems listed. The tire pressure system in your vehicle is a common basic type system. It uses the ABS sensor to measure the diameter of the tire. A tire with...

This may suggest you have a grounding problem somewhere or potentially a failing voltage regulator. This is a unit that regulates the charging of the battery by the alternator. Often times, this will result in the alternator allowing too much...

Hi there. I'm assuming the connector on the wire harness is broken and now one of the wires has broken. One of the things you could do is locate another matching truck in a junkyard or being parted out and...

The variance in cylinder compression you are reporting exceeds that allowed in the Factory Service Manual. Put oil in the No. 2 cylinder to see if compression rises appreciably and you can then rule in or out leaks past the...

Check to be sure the parking brake is not applied, seized, or stuck at the rear wheel positions. Apart from that, if the rear wheels are not turning, there is a mechanical failure in the differential, transfer case, or transmission....