over heating

ok here is the problem i have a 02 pt cruiser that is over heating i
replaced the termostat and the flushed the radiator and it still over
heats after letting it sit for a while i noticed that the fan doesnt
turn on i was told that it could be the relay or the fan sensor. can
anyone tell me how to find both of them and how to check if they are
working.

last time i posted here i got really good response and step by step
intructions tahnks for all your help
you guys rock
hector

 

if the fans come after the engine hits 229 degrees. there is a good
chance you need head gasket work esp. if the raditor has been replaced a
few times

 

If the vehicle only overheats in stop and go traffic or at slow speed
driving you have a fan issue. Turn the A/C on and see if the fan turns on as
soon as you hit the button, if it doesn't more then likely the fan motor is
bad. This fan module is designed to turn on with the a/c immediately and
then the second phase of the fan will turn on at 219 degrees and shuts off
at 210 degrees at idle

Glenn Beasley
Chrysler Tech

 

ok the fan does come on when i turn the a/c on so what could it be and
what can i do to fix the problem

 

The obvious choices are a bad fan relay, or a bad coolant temperature
sensor. A less obvious possibility is the control module or wiring between
them. Does the fan go on if you remove the connector from the CTS? If not,
then I'd replace the relay. If it does, then I would try to he CTS. Both
are easy and fairly cheap to replace.

Bob

 

ok i replaced both relays low and high speed one s and now the fan
comes on when ever it want to is there web site or where is the cts at
thats my next option on this car. thanks for your help bob

 

ok i replaced both relays low and high speed one s and now the fan
comes on when ever it want to is there web site or where is the cts at
thats my next option on this car. thanks for your help bob

 

ok i replaced both relays low and high speed one s and now the fan
comes on when ever it want to is there web site or where is the cts at
thats my next option on this car. thanks for your help bob

 

When you turn on the A/C, and the fan comes on, does the engine
temp cool down, or remain hot?

-KM