Can anyone figure out this mystery?

g1970
10

Asked by g1970 Feb 20, 2013 at 03:42 PM about the Toyota Camry

Question type: Maintenance & Repair

2001 Toyota Camry was running hot. The engine coolant was extremely dirty.  The radiator finally cracked when it overheated.  I've replaced the radiator, the hoses, the thermostat,  the engine coolant temp. sensor, fan sensor, and sending unit.  I've flushed the engine out and heater core.  It still runs hot.  I've removed the thermostat because when it idles it runs hotter even faster with it in.  Also when idling the temp gauge shows it overheating but the gauge will not move to the red line.  It's just about three quarters of the way to hot.  I can then rev up the engine to abut 3k rpms for about 8 seconds and the temp guage will move back to the halfway mark which is normal temp.  When driving (with the thermostat out) it starts out fine but after driving up a steep hill the temp gauge moves to hot and then moves back towards the center again after I drive on level streets.  There's no steam or leaks to indicate a blown head gasket or similar problem.  I'm completely baffled by this.  The only thing I can think of is some kind of blockage but I don't know where to go from here.  Can anyone figure out this mystery?

2 Answers

jdeter34
45

It's possible that your guage may be broken.

2 out of 2 people think this is helpful.
g1970
10

jdeter34, Thanks for the input. I've been fighting this car on and off for three weeks and today I succumbed to professional help. I hope what I discovered will help other people with this problem. It was actually the water pump. It wasn't leaking or making a loud noise. In fact, I had it replaced just about 3 or 4 years ago. As I stated earlier, up until this problem occurred, the coolant was "sinfully" dirty. I had not done my job of maintaining the cooling system by keeping it clean. The water pump impellers had completely corroded away. There's was only one left intact inside the water pump. My auto repair guy showed me and I couldn't believe it. I've never had this happen. This explains the temp decrease when I revved up the engine. It was barely circulating coolant. Did I mention that the heater was also not working at all? It's because the coolant was not circulating through the heater core either. It's around a $500 job because it's pretty involved and I also asked them to replace the timing belt because when you remove the water pump it's right there and there's no sense in having to do that repair later. I hope this info helps others because this has driven me crazy. I could not figure it out. Thank you again for the input.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Toyota Camry Questions

Toyota Camry Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,770
#2 Reelin68
Reelin68
Reputation 1,370
#3 littlehorn
littlehorn
Reputation 1,360
View All

Related Models For Sale

Used Honda Accord"
1,524 Great Deals out of 64,681 listings starting at $800
Used Toyota Corolla"
1,426 Great Deals out of 50,670 listings starting at $995
Used Nissan Altima"
1,851 Great Deals out of 76,431 listings starting at $1,000
Used Honda Civic"
935 Great Deals out of 53,077 listings starting at $1,900
Used Toyota Avalon"
359 Great Deals out of 14,602 listings starting at $1,999
Used Nissan Maxima"
697 Great Deals out of 19,897 listings starting at $950
Used Toyota RAV4"
826 Great Deals out of 37,445 listings starting at $1,925
Used Hyundai Sonata"
1,189 Great Deals out of 51,656 listings starting at $1,000
Used Toyota Highlander"
606 Great Deals out of 15,179 listings starting at $4,495
Used Toyota Prius"
345 Great Deals out of 15,868 listings starting at $2,650
Used Honda CR-V"
773 Great Deals out of 48,774 listings starting at $1,500
Used Ford Fusion"
1,913 Great Deals out of 67,513 listings starting at $2,995
Used Toyota Camry Solara"
130 Great Deals out of 2,132 listings starting at $1,295
Used Chevrolet Malibu"
1,787 Great Deals out of 65,897 listings starting at $1,200
Used Kia Optima"
572 Great Deals out of 38,061 listings starting at $1,900