GMC G35/G3500 Van service by top-rated mechanics at the convenience of your home or office

Hi there: Without knowing the exact make, year and model of your GMC it's hard to pinpoint the exact location of the ambient air temperature sensor. However, on most GMC pickups, it's located behind the front bumper, on the passenger...

The starter on this vehicle requires a shim, so its possible that got left out when the starter was replaced. This could cause starter engagement problems and the metal on metal noise you're hearing (https://www.yourmechanic.com/services/car-is-making-a-noise-inspection). Backfiring (https://www.yourmechanic.com/services/engine-is-backfiring-inspection), on the other...

From what you've described, it sounds like you have a stuck open thermostat. I'd recommend replacing the thermostat (https://www.yourmechanic.com/services/thermostat-replacement) to see if this is the cause of the slow heat up of the vehicle since it's a relatively quick repair....

You may have a power steering pump that is low on pressure and cannot produce enough pressure at low speeds to turn easily. Have the power steering pressures checked by a mechanic to be at or above about 700psi. If...