Why does my heat only work when I rev my engine?

Why does my heat only work when I rev my engine?

You may have a clogged heater core that may be prohibiting the outer linings of the heater core to get hot. As you know, the heater core is a series of tubes that the coolant runs through that generates the heat from the warm coolant after circulating through the motor.

Why does my heat only work at high rpms?

Heater getting hotter with engine RPM is generally an indication of being low on coolant. Coolant is full. You have a leak somewhere, and likely have air trapped in the system.

Why does my heater not work at idle?

Two things come to mind, defective or wrong thermostat or low coolant level. The engine makes very little heat when idling, and if the thermostat does not close, the engine coolant temperature may drop low enough that you’ll get no heat from the heater core.

Why does my heat only work when I hit the gas?

It’s caused when your coolant gets low. Fix your leak and bleed the coolant system. Or you can check this theory by filling and bleeding the coolant system now. If it works, it will be ok until the coolant system gets low and causes the air bubble again.

What’s the RPM of my car when the AC is on?

Basically, when i turn my AC on and put the car in drive, my RPM’s drop to about 625 and slowly rise up to 700ish RPM’s. Some times when i put it into drive the the AC on it stays at around 625 RPM’s. It seems to be intermittent mabey…

When does RPM drop when a / C compressor engages?

The rpm drop only occurs when any A/C component is on (A/C, defroster, or re-circulation), when just the vent is on, the rpm does not drop and the engine run fines. Please help me with this question, it seems like this is not a one of a kind problem.

Why is it when driving the RPM gauge drops or jumps up?

Somewhere the fuel drop then suddenly rpm decrease better check the complete fuel system from tank to injectors also check the rpm sensor . Was this answer helpful? This could possibly be your output speed sensor, related to the transmission.

What to do when your car rpm goes down?

Hey friends if your car RPM goes down to zero then do following steps. 2.Make it Throttle body clean 6.Check if there is any gas leakage near by your car engine. Do All the above your car will be smooth and there will be no problem related to RPM. Was this answer helpful?