Idle is high there is no warm air coming from the heater and the transmissions seems to be slipping

Tiny
DAVID COULTER
  • MEMBER
  • 2003 MITSUBISHI GALANT
  • 2.4L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 200,000 MILES
From a cold start the car idles at over 2000 rpm's for a few minutes. Followed by no warm air from the heater most of the time. And the transmission seems to be slipping or I do not know what.
Do you
have the same problem?
Yes
No
Saturday, December 10th, 2016 AT 6:42 AM

2 Replies

Tiny
HMAC300
  • EXPERT
Check fluid first then have a transmission professional scan for codes. It may be a seal going bad making it slips then works okay when warmed up. Check coolant level if low have it pressure checked for internal leak.
Was this
answer
helpful?
Yes
No
Saturday, December 10th, 2016 AT 10:30 AM
Tiny
STEVE W.
  • EXPERT
Sounds like a few issues. The high idle when cold could be an intake manifold leak. As it warms up the leaking area expands and seals up dropping the idle speed as the extra air gets removed. Couple ways to test that. One is to take a water bottle and squirt water all around the intake while listening for the engine to change and the sound of the water being sucked in. The other way is to take a can of carburetor cleaner and using the straw in the nozzle spray it around the intake. Listen for the engine to rev up when you find the leak. Then it is a matter of removing the offending part and replacing the gasket or hoses.

No heat can be low coolant, plugged heater core, blend door motor failure or bad thermostat.
First check the coolant level, if it is okay check the heater hoses and radiator hoses once the engine warms up.
If the hoses all are hot then suspect a bad blend door (hot coolant flowing through the core will get both the inlet and outlet hoses to the heater core close to the same temperature). If however you have a large difference in the temperature of the heater lines the core itself may be plugged and not letting coolant to flow. If you find a big difference in the temperature of the radiator hoses you likely have a bad thermostat.

Transmission slipping, does it slip all the time or only when cold?
As HMAC said, check the fluid.
Is it clean, slippery, red in color and smells like oil, or is it gritty and dark in color and smells like burnt oil?
Does it seem to slip in all gears? Forward or reverse only?
Was this
answer
helpful?
Yes
No
Saturday, December 10th, 2016 AT 6:09 PM

Please login or register to post a reply.

Recommended Guides