08 Chevy Equinox overheating problems, "ENGINE HOT/ A/C OFF"
May 1st, 2019, 10:22 AM
#11
The fans are working. As far as testing the water pump, there is water moving through the hoses. I can only assume that means the water pump is pushing water through the engine. Heck, we may be wrong. It seems logical when the thermostat opened up and you could feel the hoses and one is hot and the other is cooler. The codes that read out are all related to egr. I don't have them with me right now, but they were the same as the original person asking.
May 1st, 2019, 2:05 PM
#12
The fans are working. As far as testing the water pump, there is water moving through the hoses. I can only assume that means the water pump is pushing water through the engine. Heck, we may be wrong. It seems logical when the thermostat opened up and you could feel the hoses and one is hot and the other is cooler. The codes that read out are all related to egr. I don't have them with me right now, but they were the same as the original person asking.
I ask because the 3.4L in the Equinox uses a different impeller design than the older 3.4L commonly used in the Impala, Grand Am, and numerous other models. The older design water pump might fit, but probably won't produce enough flow. The older design uses a stamped impeller with only six fins, whereas the newer design uses a cast impeller with 9 fins.
Also, does the warning message appear right away after a cold start or does it appear after the engine warms up?
If the message appears immediately after a cold start, you definitely have an electrical issue somewhere.
Last edited by ruley73; May 1st, 2019 at 2:13 PM.
June 13th, 2019, 2:41 AM
#13
I have a 2008 Chevy Equinox AWD, 3.4 V6
The weekend before 4th of July my car started having overheating problems it would be fine and then all of a sudden it was overheating and warning alarms were going off and giving me a warning on the dash saying "ENGINE HOT A/C TURNED OFF" and "ENGINE HOT IDLE ENGINE". The first time I got this warning I was waiting in the drive-thru. The second time it happened I was backing into my driveway after driving home from the store which is only 2 maybe 3 miles away. When I stopped and turned off the engine it dumped antifreeze out the overflow, and you could see a trail on the driveway from me backing up. On an important side note my thermostat gauge on my dash hadn't been working correctly for a while; it worked here and there. Sometimes the gauge would read like normal, sometimes it wouldn't read or move up at all and one time it went all the way to the top past the red, but the car wasnt overheating. Also I had been getting a "TRACTION CONTROL OFF/SERVICE STABILITRAK/ STABILTRAK OFF" warning as well.
At this point we changed the thermostat and flushed the system. Still had the same issue. We then changed the coolant temp sensor. Again still the same issue and warnings. Then the serpentine belt was replaced and then the water pump. Still not fixed, all issues are still happening.
So we borrowed a scan tool from a friend to read the codes on my car and it gave 6 codes:
-P0403 Exhaust Gas Recirculation Circuit Malfunction
-P0404 Exhaust Gas Recirculation Circuit Range/Performance
-P0405 EGR Sensor A Circuit Low
-P0442 Evaporative Emission Control System Leak Detected (small leak)
-P0455 Evap System Large Leak Detected
-P0469 Purge Flow Sensor Circuit Intermittent
So at this point we ordered the EGR valve as that needed replaced and has seemed to fix the issue on the first 3 codes P0403, P0404, and P0405; I also no longer get the "TRACTION CONTROL OFF/SERVICE STABILITRAK/ STABILTRAK OFF" warning going off and it previously would usually go off within a block or two. But we are still having the overheating issue, we have not driven it to the point to get the overheating warning to go off again though because we don't want to continue to overheat the engine. Although we can let the car run in the driveway for an hour and it won't overheat, we did this several times while trying to bleed all of the air out of the cooling system, and have been able to since the issue started. However if you take it out for a drive you can't really go further than 5 miles without it overheating and getting the alarms and warning on the dash.
We have thought about the possibility of a head gasket the car isn't really showing any signs of it being a head gasket, no white smoke or anything out the tail pipe and the oil is fine, not milky or anything. But could still be a possibility.
Also I'm pretty sure the P0442 and P0455 and possibly the P0469 are going to be covered on a recall on it, I have a letter for it cause my car was a "may be affected by it" list. Cause it had seemed like I had been smelling some gas, so with those codes and the letter I think that's covered and most likely not affecting the overheating issue.
So the following is what we have done:
-Replaced Thermostat
-Flushed cooling system
-Replaced Coolant temperature sensor
-Replaced Serpentine belt
-Replaced Water pump
-Replaced EGR vavle (this fixed the service stabilitrak/ traction control warning)
Also both of my fans are working and kick on. The first one will come on when it hits the halfway mark and then when it starts to to get really hot, the second fan kicks on, so pretty sure I don't have a fan issue.
I'm not really sure where to look and what to check next, PLEASE HELP!
Thank you!
The weekend before 4th of July my car started having overheating problems it would be fine and then all of a sudden it was overheating and warning alarms were going off and giving me a warning on the dash saying "ENGINE HOT A/C TURNED OFF" and "ENGINE HOT IDLE ENGINE". The first time I got this warning I was waiting in the drive-thru. The second time it happened I was backing into my driveway after driving home from the store which is only 2 maybe 3 miles away. When I stopped and turned off the engine it dumped antifreeze out the overflow, and you could see a trail on the driveway from me backing up. On an important side note my thermostat gauge on my dash hadn't been working correctly for a while; it worked here and there. Sometimes the gauge would read like normal, sometimes it wouldn't read or move up at all and one time it went all the way to the top past the red, but the car wasnt overheating. Also I had been getting a "TRACTION CONTROL OFF/SERVICE STABILITRAK/ STABILTRAK OFF" warning as well.
At this point we changed the thermostat and flushed the system. Still had the same issue. We then changed the coolant temp sensor. Again still the same issue and warnings. Then the serpentine belt was replaced and then the water pump. Still not fixed, all issues are still happening.
So we borrowed a scan tool from a friend to read the codes on my car and it gave 6 codes:
-P0403 Exhaust Gas Recirculation Circuit Malfunction
-P0404 Exhaust Gas Recirculation Circuit Range/Performance
-P0405 EGR Sensor A Circuit Low
-P0442 Evaporative Emission Control System Leak Detected (small leak)
-P0455 Evap System Large Leak Detected
-P0469 Purge Flow Sensor Circuit Intermittent
So at this point we ordered the EGR valve as that needed replaced and has seemed to fix the issue on the first 3 codes P0403, P0404, and P0405; I also no longer get the "TRACTION CONTROL OFF/SERVICE STABILITRAK/ STABILTRAK OFF" warning going off and it previously would usually go off within a block or two. But we are still having the overheating issue, we have not driven it to the point to get the overheating warning to go off again though because we don't want to continue to overheat the engine. Although we can let the car run in the driveway for an hour and it won't overheat, we did this several times while trying to bleed all of the air out of the cooling system, and have been able to since the issue started. However if you take it out for a drive you can't really go further than 5 miles without it overheating and getting the alarms and warning on the dash.
We have thought about the possibility of a head gasket the car isn't really showing any signs of it being a head gasket, no white smoke or anything out the tail pipe and the oil is fine, not milky or anything. But could still be a possibility.
Also I'm pretty sure the P0442 and P0455 and possibly the P0469 are going to be covered on a recall on it, I have a letter for it cause my car was a "may be affected by it" list. Cause it had seemed like I had been smelling some gas, so with those codes and the letter I think that's covered and most likely not affecting the overheating issue.
So the following is what we have done:
-Replaced Thermostat
-Flushed cooling system
-Replaced Coolant temperature sensor
-Replaced Serpentine belt
-Replaced Water pump
-Replaced EGR vavle (this fixed the service stabilitrak/ traction control warning)
Also both of my fans are working and kick on. The first one will come on when it hits the halfway mark and then when it starts to to get really hot, the second fan kicks on, so pretty sure I don't have a fan issue.
I'm not really sure where to look and what to check next, PLEASE HELP!
Thank you!
The following 2 users liked this post by Jennifer Bryan:
Jason Wettanen (August 1st, 2020),
krreisser1 (August 6th, 2019)
June 14th, 2019, 7:46 PM
#14
I have a 2008 Chevy Equinox AWD, 3.4 V6
The weekend before 4th of July my car started having overheating problems it would be fine and then all of a sudden it was overheating and warning alarms were going off and giving me a warning on the dash saying "ENGINE HOT A/C TURNED OFF" and "ENGINE HOT IDLE ENGINE". The first time I got this warning I was waiting in the drive-thru. The second time it happened I was backing into my driveway after driving home from the store which is only 2 maybe 3 miles away. When I stopped and turned off the engine it dumped antifreeze out the overflow, and you could see a trail on the driveway from me backing up. On an important side note my thermostat gauge on my dash hadn't been working correctly for a while; it worked here and there. Sometimes the gauge would read like normal, sometimes it wouldn't read or move up at all and one time it went all the way to the top past the red, but the car wasnt overheating. Also I had been getting a "TRACTION CONTROL OFF/SERVICE STABILITRAK/ STABILTRAK OFF" warning as well.
At this point we changed the thermostat and flushed the system. Still had the same issue. We then changed the coolant temp sensor. Again still the same issue and warnings. Then the serpentine belt was replaced and then the water pump. Still not fixed, all issues are still happening.
So we borrowed a scan tool from a friend to read the codes on my car and it gave 6 codes:
-P0403 Exhaust Gas Recirculation Circuit Malfunction
-P0404 Exhaust Gas Recirculation Circuit Range/Performance
-P0405 EGR Sensor A Circuit Low
-P0442 Evaporative Emission Control System Leak Detected (small leak)
-P0455 Evap System Large Leak Detected
-P0469 Purge Flow Sensor Circuit Intermittent
So at this point we ordered the EGR valve as that needed replaced and has seemed to fix the issue on the first 3 codes P0403, P0404, and P0405; I also no longer get the "TRACTION CONTROL OFF/SERVICE STABILITRAK/ STABILTRAK OFF" warning going off and it previously would usually go off within a block or two. But we are still having the overheating issue, we have not driven it to the point to get the overheating warning to go off again though because we don't want to continue to overheat the engine. Although we can let the car run in the driveway for an hour and it won't overheat, we did this several times while trying to bleed all of the air out of the cooling system, and have been able to since the issue started. However if you take it out for a drive you can't really go further than 5 miles without it overheating and getting the alarms and warning on the dash.
We have thought about the possibility of a head gasket the car isn't really showing any signs of it being a head gasket, no white smoke or anything out the tail pipe and the oil is fine, not milky or anything. But could still be a possibility.
Also I'm pretty sure the P0442 and P0455 and possibly the P0469 are going to be covered on a recall on it, I have a letter for it cause my car was a "may be affected by it" list. Cause it had seemed like I had been smelling some gas, so with those codes and the letter I think that's covered and most likely not affecting the overheating issue.
So the following is what we have done:
-Replaced Thermostat
-Flushed cooling system
-Replaced Coolant temperature sensor
-Replaced Serpentine belt
-Replaced Water pump
-Replaced EGR vavle (this fixed the service stabilitrak/ traction control warning)
Also both of my fans are working and kick on. The first one will come on when it hits the halfway mark and then when it starts to to get really hot, the second fan kicks on, so pretty sure I don't have a fan issue.
I'm not really sure where to look and what to check next, PLEASE HELP!
Thank you!
The weekend before 4th of July my car started having overheating problems it would be fine and then all of a sudden it was overheating and warning alarms were going off and giving me a warning on the dash saying "ENGINE HOT A/C TURNED OFF" and "ENGINE HOT IDLE ENGINE". The first time I got this warning I was waiting in the drive-thru. The second time it happened I was backing into my driveway after driving home from the store which is only 2 maybe 3 miles away. When I stopped and turned off the engine it dumped antifreeze out the overflow, and you could see a trail on the driveway from me backing up. On an important side note my thermostat gauge on my dash hadn't been working correctly for a while; it worked here and there. Sometimes the gauge would read like normal, sometimes it wouldn't read or move up at all and one time it went all the way to the top past the red, but the car wasnt overheating. Also I had been getting a "TRACTION CONTROL OFF/SERVICE STABILITRAK/ STABILTRAK OFF" warning as well.
At this point we changed the thermostat and flushed the system. Still had the same issue. We then changed the coolant temp sensor. Again still the same issue and warnings. Then the serpentine belt was replaced and then the water pump. Still not fixed, all issues are still happening.
So we borrowed a scan tool from a friend to read the codes on my car and it gave 6 codes:
-P0403 Exhaust Gas Recirculation Circuit Malfunction
-P0404 Exhaust Gas Recirculation Circuit Range/Performance
-P0405 EGR Sensor A Circuit Low
-P0442 Evaporative Emission Control System Leak Detected (small leak)
-P0455 Evap System Large Leak Detected
-P0469 Purge Flow Sensor Circuit Intermittent
So at this point we ordered the EGR valve as that needed replaced and has seemed to fix the issue on the first 3 codes P0403, P0404, and P0405; I also no longer get the "TRACTION CONTROL OFF/SERVICE STABILITRAK/ STABILTRAK OFF" warning going off and it previously would usually go off within a block or two. But we are still having the overheating issue, we have not driven it to the point to get the overheating warning to go off again though because we don't want to continue to overheat the engine. Although we can let the car run in the driveway for an hour and it won't overheat, we did this several times while trying to bleed all of the air out of the cooling system, and have been able to since the issue started. However if you take it out for a drive you can't really go further than 5 miles without it overheating and getting the alarms and warning on the dash.
We have thought about the possibility of a head gasket the car isn't really showing any signs of it being a head gasket, no white smoke or anything out the tail pipe and the oil is fine, not milky or anything. But could still be a possibility.
Also I'm pretty sure the P0442 and P0455 and possibly the P0469 are going to be covered on a recall on it, I have a letter for it cause my car was a "may be affected by it" list. Cause it had seemed like I had been smelling some gas, so with those codes and the letter I think that's covered and most likely not affecting the overheating issue.
So the following is what we have done:
-Replaced Thermostat
-Flushed cooling system
-Replaced Coolant temperature sensor
-Replaced Serpentine belt
-Replaced Water pump
-Replaced EGR vavle (this fixed the service stabilitrak/ traction control warning)
Also both of my fans are working and kick on. The first one will come on when it hits the halfway mark and then when it starts to to get really hot, the second fan kicks on, so pretty sure I don't have a fan issue.
I'm not really sure where to look and what to check next, PLEASE HELP!
Thank you!
Great thread!
The following 3 users liked this post by kuntrygirl:
Jane Silvers Taylor (January 28th, 2021),
krreisser1 (August 6th, 2019),
MIKEY BARAN (February 4th, 2021)
August 6th, 2019, 1:04 PM
#16
Good afternoon,
if you take take your vehicle in to the shop, could you please let me know hat they say. I’m lost. I changed the thermostat, water pump, serpentine belt, tune up, new radiator, new cap, temperature sensor. Out out of ideas other than the head gasket. Please help.
Kristine
if you take take your vehicle in to the shop, could you please let me know hat they say. I’m lost. I changed the thermostat, water pump, serpentine belt, tune up, new radiator, new cap, temperature sensor. Out out of ideas other than the head gasket. Please help.
Kristine
The following users liked this post:
MIKEY BARAN (February 4th, 2021)
August 11th, 2019, 10:59 PM
#17
HI,
It happened to me to in the drive thru and my Chevy Equinox '07 lose all the antifreeze, I take the SUV to the close Firestone and they found the FAN of the radiator was not working and that produce the overheating, I had to replaced the Fan and fix the problem on my case.... don't know if this help you...
Thanks, Viera
It happened to me to in the drive thru and my Chevy Equinox '07 lose all the antifreeze, I take the SUV to the close Firestone and they found the FAN of the radiator was not working and that produce the overheating, I had to replaced the Fan and fix the problem on my case.... don't know if this help you...
Thanks, Viera
The following users liked this post:
krreisser1 (August 12th, 2019)
December 18th, 2019, 8:05 PM
#18
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2009 Chevy Equinox
I have a 2009 equinox that is over heating Can any please tell me if they ever resolved or figured out the problem I have tryed several things and can’t figure out what is going it is not the head gasket.please help
December 19th, 2019, 9:34 AM
#19
Make sure the coolant lid is holding pressure. Make sure coolant is mixed to at least 50/50 water/antifreeze ratio. Check both cooling fans to make sure they are operating properly. Both fans should run at low speed when the A/C is turned on and run at high speed when the temp gauge gets above the middle mark.
December 20th, 2019, 9:00 PM
#20
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Ok here is a run down of everything I have tryed on it.the equinox starting heating up and it blew a head gasket when I went to put on the head gasket it also had a cracked head so I replaced the head and both head gasket.and i also replaced the water pump and a new thermostat and bleed out the air it does good for about 15 mile drive an then it quickly heats up and when it heats up my heat inside the vehicle stops working.and the antifreeze lever drops down really low. I’m not sure what the problem is I will be trying a new coolant cap tomorrow.any suggestions would be greatly appreciated if the coolant cap doesn’t fix the problem I don’t no what else to do.my fans seem to be working properly.