98 Blazer Heater Control Problems, I have flushed my system about 5 times now (twice doing an acid flush) and it has worked after each one. Took it back to the mechanic and my radiator was clogged because a previous mechanic had put in a stop leak. I believe this was a problem with a blend door and not vacuum. Heater is HOT Mechanic's Assistant chat Customer: Hello, 98 Blazer with computer One of the most common problems that can happen to a vehicle is a heater core leak. Do I have a bad water pump. Classic Industries offers 1998 Chevrolet Blazer Control Panels This step-by-step guide makes the repair simple and hassle-free, so you can get your climate control back to working perfectly! 💬 Got questions or tips? Drop them in the comments below! Climate Control Module Reset I replaced the battery in my 1998 Chevy Blazer and now I don't have heat. 3L and I'm having heat issues, which I hear are normal with these. If you turn it to any other position, be it vent or floor, the The heater controls were still able to switch between the dash vents and the defrost/heater vents. com. These issues can arise from a variety of Re: chevy blazer heater control problem (watson) Sounds like the vent control isn't working. If the engine does not seem to warm up fully and mpg is down then the thermostat might be stuck open. To backflush the heater core, disconnect the heater hoses A great tool to test vacuum systems can be found on Amazon HERE: http://www. first problem is when i switch to floor vent it goes to defrost vents this happens on both settings that uses the floor vent but Just finished replacing heater door. amazon. It is recommended to have a professional mechanic inspect your Chevy Blazer to diagnose and fix the My 98 blazer is over heating and the heater is blowing cold air. Great deals. Here's how to diagnose and replace a faulty module so you don't get stuck without A/C The heater and A/C control module determines the appropriate blower speed and sends a pulse width modulated (PWM) signal to the blower control module. Ambient air temperature sensor is located on right side of radiator Heating problems in the 1999 Chevrolet Blazer are often a nuisance, especially in cold weather. You will want to buy the little white plastic lever that you can see without taking the dash apart. Here are a few of the most common electrical problems that can keep your Chevy Blazer’s air conditioner from working correctly. AC is COLD at max cool but unable to control blended temperature. Common problems include a non-working blower motor, which can prevent air flow from the The heater control valve on a 1998 Blaer is typically located near the firewall on the engine side, controlling coolant flow to the heater core. GMC Jimmy, S10, Blazer DIY How to Diagnose HVAC Mode Control - Vent - Defrost - Floor Selector How to Replace Temperature Blend Door Actuator 2002-2009 Chevrolet Trailblazer Climate control module is the brain of the air-conditioning system in your Chevy Blazer, responsible for controlling all the components in the system. My 98 blazer has little or no heat, one of my heater core lines stays cold, if I raise the idle, heat seems to get hotter. Common symptoms of overheating include smoke coming from under the hood, a pegged temperature gauge, and Chevy S-10 No Intrumentation and Heat issues - Diagnosis and repair Doogie Rick 23. That said, I've had to have my heater core unplugged a couple times in this blazer. com/gp/product/B00265M9SS/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&camp=1789&cre Diagnose heater issues in your 2020 Chevrolet Blazer by understanding common problems, symptoms, and essential components for effective troubleshooting. Other This video is regarding the repair procedure for a GM Full Size Truck AC Heater Fan Speed switch AND a complete climate control assembly replacement. I already changed the thermostat and added - Chevrolet 1998 Blazer question If your 1998 Blazer heater blows hot air constantly despite no heat for years, check the blend door actuator first. 98 s blazer heater control not responding no blower or any control Mechanic's Assistant chat Customer: The heater control in my vehicle isn't responding, and there is no blower or any control functioning. They are low coolant, air pockets, a bad heater core, an airlocked cooling system, and a Hi, I have a 1998 Bazer, 4. Massive selection from top brands on eBay. It took about 7 hours to get everything apart, The heat went out in my wife’s blazer I flushed the system, changed the thermostat, but still no heat what else can I check? Is there a heater control valve some where? If so where? Or is FITS 98-05 CHEVY S10 BLAZER GMC JIMMY CONTROL CLIMATE A/C FAN HEATER KNOB TEMP (For: 1998 Chevrolet Blazer) Brand New · AUXITO $10. Just installed a new A/C Heater Control Assembly, still not working. In rare cases, a fault in the climate control unit can One of the most inconvenient vehicular problems is when the A/C won't blow cold air.

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