why is the temp reading different?
#1
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why is the temp reading different?
im going to do my best to describe my situation so bear with me!
I changed the waterpump on my 1997 Lt1 ,When i started the car i saw i notice my fans were not kicking on and it was close to overheating i decided not to mess with it any longer.
i took it to a local shop where they perform the following:
*new coolant temp sensor
*new thermostat 180*
*bleeed coolant system
*flushed radiator
*before fans will kick in at around 225-230 and drop down temp to like 210-220.
*Today when i got it back notice that the fans are not kicking in like before. they are kicking on at 235-240(they go on when they are so close to the red).
why is this?
does it take time for the new parts to start sending in the right signals?
I changed the waterpump on my 1997 Lt1 ,When i started the car i saw i notice my fans were not kicking on and it was close to overheating i decided not to mess with it any longer.
i took it to a local shop where they perform the following:
*new coolant temp sensor
*new thermostat 180*
*bleeed coolant system
*flushed radiator
*before fans will kick in at around 225-230 and drop down temp to like 210-220.
*Today when i got it back notice that the fans are not kicking in like before. they are kicking on at 235-240(they go on when they are so close to the red).
why is this?
does it take time for the new parts to start sending in the right signals?
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#9
TECH Enthusiast
take into consideration that the PCM reads from the water pump sensor and the gauge cluster from the sensor in the head. you might wanna hook up a 3rd party gauge just to make sure it really is off by that much.
#12
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You need to get a tune, I would recommend a mail order tune to get your fans to kick on earlier and you may notice a difference in power. There are several people who provide this service trifecta, pcmforless, and madtuner are a few of the more popular ones.
#14
TECH Resident
My experience with madtuner has been great so far! PCM For Less is good too. I don't feel a need to go into detail, but personally I didn't have a great experience with Trifecta. I seem to be a minority though.
#15
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I did trifecta when I built my 383 for my 97, he is really good. He can send you the equipment and then you can load the tune and do a data log and email him data logs so he can check everything and then if it needs to be adjusted he just E-mails you the new tune file and you load it in the tunner and reprogram the PCM. I like it because there is realy no down time and no removing the pcm. He was able to tell that I had a small exhaust leak on my passenger side header just by looking at the data logs I sent him when I had no clue it was there.