AC was serviced, and now overheating?
#1
AC was serviced, and now overheating?
Hi I'm Harrier,
Recently I had my my air system refilled by mechanic, car idled 20-30 min.
Driving from mechanics car and air cond. ran fine for about ten minutes, car
temp then went to 255, with all the alarm bells & chimes, including oil use life
dropping to zero/replace???????
Car is a 1999 Deville
Recently I had my my air system refilled by mechanic, car idled 20-30 min.
Driving from mechanics car and air cond. ran fine for about ten minutes, car
temp then went to 255, with all the alarm bells & chimes, including oil use life
dropping to zero/replace???????
Car is a 1999 Deville
#2
Senior Member
Not good. Are the electrical rad cooling fans working?
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1997 Buick Pk Ave (Soft Ride) Suspension!
1997 Buick Pk Ave (Soft Ride) Suspension!
#3
Check Purge line, there should be steady flow at idle, if that all checks out get a Block test (Hydrocarbon test) done, to check for exhaust gases in the cooling system. also if your A/C is on your fans should kick into high speed pretty much right away.
#4
Retired
If all other instruments went bonkers, I suspect something else besides cooling system at fault.
I suggest hooking car up to a scanner to view live data vs what'* seen on the instrument cluster.
I suggest hooking car up to a scanner to view live data vs what'* seen on the instrument cluster.
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Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
Retired Administrator
2002 *-10 5.7 V8
2023 Jeep Rubicon Diesel
#5
its factory that the oil life monitor goes down to zero, the PCM tells it to because it thinks when the engine gets overheated it wrecks the oil'* life, also there will be a message something along the lines of "engine overheated - Idle engine" and "A/C shut down" check engine light appears as well. all normal.
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