| Author |
Message |
Jax
Guest
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 Posted:
Wed Dec 29, 2004 9:21 pm Post subject:
Quick Temperature Spikes |
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I have a 94 Grand AM 3.1 and I am getting temp spikes.
I will be driving along and the temp will shoot up very fast, and then stay
up around the red for several seconds, then drop very quickly back to around
1/4 on the guage.
Originally it was thought that it was just low on coolant, so my garage bled
the cooling system, and topped it up. This worked for a short while. Then
the problem returned.
The garage also ran a pressure test, and said it didn't look like there was
a leak in the system. The thermostat, and water pump were replaced, and this
seemed to fix the problem for about 2 weeks, but now the problem has
returned again. It is losing coolant somewhere, but it doesn't look like it
is going into the oil. And it is not losing fluid when I am parked.
Also I can here a loud rushing of water or gurgling noise that sounds like
it coming from right behind the dash. In addition when the temp does go up,
I can usually put the car in neutral and rev tha gas, and it seems to get
the circulation going and the temp drops to normal.
I had a similar problem before and it was the intake manifold, but there was
coolant leaking in the oil, and the temp was rising gradually and staying
up. This time the temp is spiking quickly and dropping quicky after a few
seconds, and like I said, no signs of coolant mixing with the oil.
I never did have the entire system flushed out, I think they just ran it and
let the air pockets come out. I am wondering if maybe there is a large
pocket somewhere perhaps in the block itself that is not being flushed out.
If anyone has any suggestions of what to check for next it would be much
appreciated.
Regards,
Jax
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Woody
Guest
|
| Posted:
Wed Dec 29, 2004 9:43 pm Post subject:
Re: Quick Temperature Spikes |
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|
How old are the hoses. They will separate internally and collapse causing
this type of problem. Replace them...
"Jax" <none@none.com> wrote in message
news:6PWdneSzdqwLRE_cRVn-2A@rogers.com...
| Quote: | I have a 94 Grand AM 3.1 and I am getting temp spikes.
I will be driving along and the temp will shoot up very fast, and then
stay
up around the red for several seconds, then drop very quickly back to
around
1/4 on the guage.
Originally it was thought that it was just low on coolant, so my garage
bled
the cooling system, and topped it up. This worked for a short while. Then
the problem returned.
The garage also ran a pressure test, and said it didn't look like there
was
a leak in the system. The thermostat, and water pump were replaced, and
this
seemed to fix the problem for about 2 weeks, but now the problem has
returned again. It is losing coolant somewhere, but it doesn't look like
it
is going into the oil. And it is not losing fluid when I am parked.
Also I can here a loud rushing of water or gurgling noise that sounds like
it coming from right behind the dash. In addition when the temp does go
up,
I can usually put the car in neutral and rev tha gas, and it seems to get
the circulation going and the temp drops to normal.
I had a similar problem before and it was the intake manifold, but there
was
coolant leaking in the oil, and the temp was rising gradually and staying
up. This time the temp is spiking quickly and dropping quicky after a few
seconds, and like I said, no signs of coolant mixing with the oil.
I never did have the entire system flushed out, I think they just ran it
and
let the air pockets come out. I am wondering if maybe there is a large
pocket somewhere perhaps in the block itself that is not being flushed
out.
If anyone has any suggestions of what to check for next it would be much
appreciated.
Regards,
Jax
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AG
Guest
|
| Posted:
Thu Dec 30, 2004 12:40 am Post subject:
Re: Quick Temperature Spikes |
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|
Has anybody checked the temperature sensor......
"Jax" <none@none.com> wrote in message
news:6PWdneSzdqwLRE_cRVn-2A@rogers.com...
| Quote: | I have a 94 Grand AM 3.1 and I am getting temp spikes.
I will be driving along and the temp will shoot up very fast, and then
stay
up around the red for several seconds, then drop very quickly back to
around
1/4 on the guage.
Originally it was thought that it was just low on coolant, so my garage
bled
the cooling system, and topped it up. This worked for a short while. Then
the problem returned.
The garage also ran a pressure test, and said it didn't look like there
was
a leak in the system. The thermostat, and water pump were replaced, and
this
seemed to fix the problem for about 2 weeks, but now the problem has
returned again. It is losing coolant somewhere, but it doesn't look like
it
is going into the oil. And it is not losing fluid when I am parked.
Also I can here a loud rushing of water or gurgling noise that sounds like
it coming from right behind the dash. In addition when the temp does go
up,
I can usually put the car in neutral and rev tha gas, and it seems to get
the circulation going and the temp drops to normal.
I had a similar problem before and it was the intake manifold, but there
was
coolant leaking in the oil, and the temp was rising gradually and staying
up. This time the temp is spiking quickly and dropping quicky after a few
seconds, and like I said, no signs of coolant mixing with the oil.
I never did have the entire system flushed out, I think they just ran it
and
let the air pockets come out. I am wondering if maybe there is a large
pocket somewhere perhaps in the block itself that is not being flushed
out.
If anyone has any suggestions of what to check for next it would be much
appreciated.
Regards,
Jax
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Jeffrae
Guest
|
| Posted:
Thu Dec 30, 2004 1:01 am Post subject:
Re: Quick Temperature Spikes |
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|
"AG" <angelo.grasso@cae.com> wrote in message
news:cqv17b$gdc$1@dns3.cae.ca...
| Quote: | Has anybody checked the temperature sensor......
|
This sounds like a good start..
Quick spkikes must be elctrical.. Water doesn't instantly heat up the metal
sensor and then cool it in a matter of seconds...
Jeff |
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Paul
Guest
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| Posted:
Thu Dec 30, 2004 7:34 pm Post subject:
Re: Quick Temperature Spikes |
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|
Sound like air entrapment in your coolant system if you can hear gurgling or
boiling noise. Coolant system will not operate properly when coolant
pressure is not properly controlled.
| Quote: | I would check for coolant radiator cap.
set your cabin heat to max and bleed your coolant system again.
|
"Jax" <none@none.com> wrote in message
news:6PWdneSzdqwLRE_cRVn-2A@rogers.com...
| Quote: | I have a 94 Grand AM 3.1 and I am getting temp spikes.
I will be driving along and the temp will shoot up very fast, and then
stay
up around the red for several seconds, then drop very quickly back to
around
1/4 on the guage.
Originally it was thought that it was just low on coolant, so my garage
bled
the cooling system, and topped it up. This worked for a short while. Then
the problem returned.
The garage also ran a pressure test, and said it didn't look like there
was
a leak in the system. The thermostat, and water pump were replaced, and
this
seemed to fix the problem for about 2 weeks, but now the problem has
returned again. It is losing coolant somewhere, but it doesn't look like
it
is going into the oil. And it is not losing fluid when I am parked.
Also I can here a loud rushing of water or gurgling noise that sounds like
it coming from right behind the dash. In addition when the temp does go
up,
I can usually put the car in neutral and rev tha gas, and it seems to get
the circulation going and the temp drops to normal.
I had a similar problem before and it was the intake manifold, but there
was
coolant leaking in the oil, and the temp was rising gradually and staying
up. This time the temp is spiking quickly and dropping quicky after a few
seconds, and like I said, no signs of coolant mixing with the oil.
I never did have the entire system flushed out, I think they just ran it
and
let the air pockets come out. I am wondering if maybe there is a large
pocket somewhere perhaps in the block itself that is not being flushed
out.
If anyone has any suggestions of what to check for next it would be much
appreciated.
Regards,
Jax
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gad
Guest
|
| Posted:
Thu Dec 30, 2004 11:45 pm Post subject:
Re: Quick Temperature Spikes |
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|
Don't know if this helps or not, but I had a 86 Ford TBird that did the same
thing. Turned out to be a small voltage regulator in the instrument cluster
that would intermittently "stick" and cause the gauge to climb. Next time
it happens see if your fuel gauge climbs too.
"Jax" <none@none.com> wrote in message
news:6PWdneSzdqwLRE_cRVn-2A@rogers.com...
| Quote: | I have a 94 Grand AM 3.1 and I am getting temp spikes.
I will be driving along and the temp will shoot up very fast, and then
stay
up around the red for several seconds, then drop very quickly back to
around
1/4 on the guage.
Originally it was thought that it was just low on coolant, so my garage
bled
the cooling system, and topped it up. This worked for a short while. Then
the problem returned.
The garage also ran a pressure test, and said it didn't look like there
was
a leak in the system. The thermostat, and water pump were replaced, and
this
seemed to fix the problem for about 2 weeks, but now the problem has
returned again. It is losing coolant somewhere, but it doesn't look like
it
is going into the oil. And it is not losing fluid when I am parked.
Also I can here a loud rushing of water or gurgling noise that sounds like
it coming from right behind the dash. In addition when the temp does go
up,
I can usually put the car in neutral and rev tha gas, and it seems to get
the circulation going and the temp drops to normal.
I had a similar problem before and it was the intake manifold, but there
was
coolant leaking in the oil, and the temp was rising gradually and staying
up. This time the temp is spiking quickly and dropping quicky after a few
seconds, and like I said, no signs of coolant mixing with the oil.
I never did have the entire system flushed out, I think they just ran it
and
let the air pockets come out. I am wondering if maybe there is a large
pocket somewhere perhaps in the block itself that is not being flushed
out.
If anyone has any suggestions of what to check for next it would be much
appreciated.
Regards,
Jax
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Guest
|
| Posted:
Fri Dec 31, 2004 5:32 am Post subject:
Re: Quick Temperature Spikes |
|
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| Quote: | I am getting temp spikes.
|
Could be a faulty pressure cap, faulty temp gauge sending unit, loose
ground. Gurgling in dash is probably sounding from the heater core.
Hope this helps some.
Dave S(Texas) |
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robert -wanda fox
Guest
|
| Posted:
Sun Jan 02, 2005 8:05 pm Post subject:
Re: Quick Temperature Spikes |
|
|
had the same problem with my 92 grand am.after much testing and
probing,wound up being that the electrical fan was intermittent,would work
and test fine at times but while on the road or whenever it wanted would
quite for intervals sending the temps up,kick on at will then temps would
drop,ran the car in my drive way at idle just watching it and lo and behold
it did it while i was testing it. good luck
"Jax" <none@none.com> wrote in message
news:6PWdneSzdqwLRE_cRVn-2A@rogers.com...
| Quote: | I have a 94 Grand AM 3.1 and I am getting temp spikes.
I will be driving along and the temp will shoot up very fast, and then
stay
up around the red for several seconds, then drop very quickly back to
around
1/4 on the guage.
Originally it was thought that it was just low on coolant, so my garage
bled
the cooling system, and topped it up. This worked for a short while. Then
the problem returned.
The garage also ran a pressure test, and said it didn't look like there
was
a leak in the system. The thermostat, and water pump were replaced, and
this
seemed to fix the problem for about 2 weeks, but now the problem has
returned again. It is losing coolant somewhere, but it doesn't look like
it
is going into the oil. And it is not losing fluid when I am parked.
Also I can here a loud rushing of water or gurgling noise that sounds like
it coming from right behind the dash. In addition when the temp does go
up,
I can usually put the car in neutral and rev tha gas, and it seems to get
the circulation going and the temp drops to normal.
I had a similar problem before and it was the intake manifold, but there
was
coolant leaking in the oil, and the temp was rising gradually and staying
up. This time the temp is spiking quickly and dropping quicky after a few
seconds, and like I said, no signs of coolant mixing with the oil.
I never did have the entire system flushed out, I think they just ran it
and
let the air pockets come out. I am wondering if maybe there is a large
pocket somewhere perhaps in the block itself that is not being flushed
out.
If anyone has any suggestions of what to check for next it would be much
appreciated.
Regards,
Jax
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