I am looking for the air coming out when the heat is on

replaced 02 sensor, which eliminated CEL, but that's about it, now it feels like transmission is jerking into gear when put in PARK or REVERSE, and jumps and hesitates between the other gears on the open road. this morning it stalled when stopped at a light. help!

I replaced the thermostat housing and a new coolant temperature sensor but I can't get the old clip back in. Is there a certain way to do it ?

Could this be as simple as a head gasket only? There is no water in the oil. What specific checks would they have had to perform to determine it is in fact the internal parts to the engine?

warning started coming on last winter so I lubed latch & it went away but would keep coming back & now it won't go ff no more so doors won't lock while driving & dome lights stay on when vehicle is off. also warning stays on on dash screen so can't see other features on screen.

Engine light came on, code came back as bank 2 sensor 2 running lean? where is this under my truck, passenger or driver side? it's downstream. now my truck feels like it's jerking between gears at times, and idling rough. is this all related? will replacing sensor fix the problem?

no rough starts, no overheating, etc. what causes this

How difficult are they to replace and would you just replace the hubs with the bearings already installed?

Heater - A/C blower is stuck on "defrost" regardless of what position the blower is set to. Fan speeds all work. Temperature control works. Majority of air is expelled at the windshield

Chk engine light comes on truck shuts off? Then 2 days later Temp gauge goes up next day plz inform. Thanks

The heat does not work and valve was just installed.

When i turn it off the sound goes away. Heater & AC work great. what is that clicking noise?

i have a 2006 ford explorer that's making a clicking noise under the hood. i was told it could be the valve train lifter or rocker arm or push rod or weak valve spring. i would like to know what to expect to pay for those services?