Q: Shaking when braking.

The rear view mirror is a very important safety feature, that gives you visibility through your rear windshield. At night, however, the glare from headlights can make it hard for you to use your rear view mirror. The automatic dimming...

Hi there. That noise you are hearing is the engine coolant (anti-freeze) traveling through the heater core. The reason you can hear it is due to air being trapped in your engines cooling system. You may not have any drivability...

The best way to locate a fluid leak of any kind is to first clean the entire area that the leak is suspected to be coming from. Then allow time for the area to dry or use compressed air to...

A few things can cause rough starting like you have described. The usual culprits are issues with the battery (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-battery), starter (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-starter), fuel pump (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-pump), fuel filter (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-filter), or the ignition switch (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ignition-switch). I'd recommend enlisting a qualified technician to...

Hello there, thank you for asking about your 1986 GMC S15. You don't say whether you have an automatic or manual transmission, so I'm not sure how to help you with your shifting concern. As far as the engine performance...

Hi there. There could be three things that could be causing your engine to overheat and the heater to not work. (1) The thermostat could be stuck shut or causing the cooling system to not flow making the engine overheat...

Hi there. I think your best bet is to have one of our professional mechanics come to your location and complete a car is getting poor gas mileage inspection (https://www.yourmechanic.com/services/car-is-getting-worse-gas-mileage-inspection). This will allow them to inspect your fuel system and...

Be sure the engine immobilizer system is not activated (https://www.yourmechanic.com/article/how-to-shut-off-the-anti-theft-device-in-your-car-by-jason-unrau) thus preventing the car from starting. If the engine is not turning over (cranking) with the key held in the start position, that means that there is a problem...

The problem in performing a bypass is it is illegal in all jurisdictions to bypass, or modify, any vehicle component for the express purpose of defeating mandated emissions testing. If the output shaft in the two transmissions is identical (including...