Add fluid if/when your reservoir starts to get low as it fills in any bubbles. Look around the heater, radiator, Throttle Body hoses and connections.

Tip the front of the engine up (park uphill or such), pop the radiator cap off (careful if its hot!) and run the engine, keeping a close eye on the engine temp. Check the AT fluid and Engine oil and make sure it isnt milky or foamy.

I might use a gravity feed - a hose from the bottom of a full bucket, like an IV drip but bigger :)įlushing it might be the best diagnostic - you should be able to tell if it's blocked or not if your gravity feed doesn't get much flow in one direction.Īfter you're done, make sure you flush out any air bubbles that might be in the coolant loop. If you decide to try to flush/backflush it with a garden hose or something, make sure you don't use too much pressure, or you'll blow out the heater core, especially if it's blocked. The worst complaints are body / paint, AC / heater, and accessories - interior. Fading / Flaking Paint on Interior Door Panel/s. The 2004 Pontiac Vibe has 327 problems & defects reported by Vibe owners. Fading / Flaking Paint on 2.4L Engine Cover. Since that's not happening, there's a good chance the core is blocked. I also included a link to the most relevant thread for each issue, recall and TSB. If it's stuck closed then it would overheat. A likely cause for no heat is an air pocket in the heater core, this can happen if the coolant is changed and then the system isnt properly burped. It is located to on the firewall behind the glove box on the lower left side of the blower assembly. My 2005 Vibe did the same thing it was the heater resistor. If your thermostat was stuck open, there's a good chance the engine wouldn't be able to come up to temperature especially on a cold day. SOURCE: 2005 Pontiac Vibe heater fan working on high only. Cruise control, clock, warning lights, body control.

The most common reason for your Pontiac Vibe’s AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged). The owner comments describe problems respondents experienced with this vehicle. If there’s no voltage, test the resistor (YouTube). If the engine is warm, the air flow through the heater core is off, and one side of the heater core isn't burning hot like the other, then there's a good chance your heater core has debris in it causing it to block. If voltage goes to the blower motor, it’ll need replacing.

2010 pontiac vibe heater problems