View Full Version : Overheating ..........


Skvr_Z
06-26-2012, 11:36 AM
Ok I recently installed new cooling fans, new 160 degree thermostat ,but a week ago I noticed my temp gauge would stay slightly under 210 for about 25-30 mins then the temp would slowly rise , I checked for any air bleed the line under the tb, an still have overheating issues I noticed only one fans would be on an sometimes the second would kick on after I turn the car off , does anybody have any advise or tips , thx

DisasterFormula
06-26-2012, 12:10 PM
Usually fans are set to kick on at like 226 or something for fuel economy. Retard timing and what not. I suggest getting a tune for them to kick on at a lower temperature or wire in a manual fan switch.

LS6427
06-26-2012, 01:52 PM
Fans MUST come "on" and go "off" together.......always. They also always work in LOW and HIGH at the same time.

You have a fan issue.

Your temps should decrease and run below 210 if cruising on the highway.......if its still getting hotter than 210 and increasing while cruising....you have another issue.

.

Skvr_Z
06-26-2012, 02:03 PM
I know that one fan comes on yesterday I drove the car for about 20-25 mins, and stop at a target 6-7 miles from me and one fan was blowing on high

Skvr_Z
06-26-2012, 02:15 PM
Also , when cruising on the highway temp would drop back then when stop n go it would go back up

LS6427
06-26-2012, 05:33 PM
Also , when cruising on the highway temp would drop back then when stop n go it would go back up

Your problem than....is your fans. You have to find out why they are BOTH not running TOGETHER.

I'm not positive.....but I think a failing "coolant temp sensor" can cause the fans to wig out. Not sure which year PCM you have....I see you have a crate engine. Some years act differently when temp sensors start to act up.
.

Skvr_Z
06-26-2012, 07:10 PM
My car is a 99 with the stock PCM

Skvr_Z
06-29-2012, 02:52 PM
I installed a new rely ,new coolant temp sensor ,bleed the coolant and the car still overheats don't have a clue whats going on

LS6427
07-01-2012, 12:38 AM
Read post #3 again.

.

Skvr_Z
07-08-2012, 10:52 AM
Anybody in the NYC area interested in taking a look at my car

95badboy
07-15-2012, 09:07 PM
Bump for this thread I have a 99 ss doin the exact same but it pushes watercoolant out the over flow

LS1121
07-15-2012, 10:45 PM
how does it act when you turn on the A/C. Running the a/c will cause both fans to operate.

95badboy
07-16-2012, 07:29 AM
Aint tryin to steal the thread but mine don't help any

Skvr_Z
07-24-2012, 05:13 PM
Still having overheating issues , new water pump thermostat ,hoses , out the funny thing is I would pull over to check if my cooling fans is on an only one "driver side" is blowing on high , the only time they both on is if my car get too hot & I shut her down then they both stay on

azvette89
08-03-2012, 02:24 PM
Im having the same problems

LS1121
08-03-2012, 05:05 PM
I know this might sound stupid but look up inside where the radiator is because I had picked up one of those plastic shopping bags like you get at the supermarket, somewhere on the road and it was blocking the air flow.

Skvr_Z
08-06-2012, 12:52 PM
I took my car to a radiator shop that checked out ok , I'm not leaking, smoking, losing coolant nothing, got the motor checked out , that's fine idk

88blackiroc
08-07-2012, 12:22 AM
Fans MUST come "on" and go "off" together.......always. They also always work in LOW and HIGH at the same time.

You have a fan issue.

Your temps should decrease and run below 210 if cruising on the highway.......if its still getting hotter than 210 and increasing while cruising....you have another issue.

.

What would the other issue be? My car has this problem where the the heat will increase on the highway while cruising and it climbs higher when i go wot. However, ive seen it rise while not being on the gas and cruising. Ive bled the system, its a new tstat, what could it be? Car is a 88 camaro with a 99 pcm and wiring harness

azvette89
08-07-2012, 01:35 PM
I'm thinking it's gona be a fan problem, my car is running past 220 and when I open the hood only one fan is on. Weird because when I turn the AC off the driver side fan turns off and the passenger side then turns on. Anybody know the reason for that?

1_MEANZ28
08-07-2012, 04:02 PM
Bump for this thread I have a 99 ss doin the exact same but it pushes watercoolant out the over flow
replace the radiator's cap,,trust me ...been their done that

1_MEANZ28
08-07-2012, 04:04 PM
I'm thinking it's gona be a fan problem, my car is running past 220 and when I open the hood only one fan is on. Weird because when I turn the AC off the driver side fan turns off and the passenger side then turns on. Anybody know the reason for that?
replace fans and loose the thermostat ull have water cycling always

azvette89
08-07-2012, 05:37 PM
Are there any other relays besides the ones in the black fuse box that would cause the fans to not work? And I will get rid of the thermostat

joecar
08-07-2012, 10:26 PM
If only one fan is turning on, then the other fan may have a short in its motor or in its wiring.

spinya
08-08-2012, 09:19 AM
Have you checked both of the fans while unplugged? Check the resistance they have to make sure they arent failing internally? Hard wire them directly just to make sure they both blow with the same force? Then I would make sure they are well grounded.

azvette89
08-08-2012, 04:02 PM
I got under the car this morning and seen that both the compressor and radiator were covered in a whole bunch of hay and junk. I used a brush to get it off and used some air from a compressor to blow out the rest of the junk. Couldn't start the car up because I tore both of the belts on the car so I'll replace and test the car out tomorrow.