Strange coolant temp guage movement - 98 A4 V6
#11
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
Ian writes:
>Thermostats usually fail by sticking in some
>position so the behavior you describe is unlikely. .
I agree. But, on the chance it *is* a thermostat, while you down and in there,
ya might as well replace the timing belt and the water pump.
Dave
RS6
>Thermostats usually fail by sticking in some
>position so the behavior you describe is unlikely. .
I agree. But, on the chance it *is* a thermostat, while you down and in there,
ya might as well replace the timing belt and the water pump.
Dave
RS6
#12
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
Ian writes:
>Thermostats usually fail by sticking in some
>position so the behavior you describe is unlikely. .
I agree. But, on the chance it *is* a thermostat, while you down and in there,
ya might as well replace the timing belt and the water pump.
Dave
RS6
>Thermostats usually fail by sticking in some
>position so the behavior you describe is unlikely. .
I agree. But, on the chance it *is* a thermostat, while you down and in there,
ya might as well replace the timing belt and the water pump.
Dave
RS6
#13
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
Ian writes:
>Thermostats usually fail by sticking in some
>position so the behavior you describe is unlikely. .
I agree. But, on the chance it *is* a thermostat, while you down and in there,
ya might as well replace the timing belt and the water pump.
Dave
RS6
>Thermostats usually fail by sticking in some
>position so the behavior you describe is unlikely. .
I agree. But, on the chance it *is* a thermostat, while you down and in there,
ya might as well replace the timing belt and the water pump.
Dave
RS6
#14
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
"Dave LaCourse" <davplac@aol.comPirate> wrote in message
news:20050128201325.10996.00000368@mb-m28.aol.com...
> Ian writes:
>
> >Thermostats usually fail by sticking in some
> >position so the behavior you describe is unlikely. .
>
> I agree. But, on the chance it *is* a thermostat, while you down and in
there,
> ya might as well replace the timing belt and the water pump.
>
> Dave
> RS6
Yes, definitely, if you're replacing the thermostat, the TB and WP should
also be considered unless they've been recently replaced. I still think the
OP will discover it's the sensor.
news:20050128201325.10996.00000368@mb-m28.aol.com...
> Ian writes:
>
> >Thermostats usually fail by sticking in some
> >position so the behavior you describe is unlikely. .
>
> I agree. But, on the chance it *is* a thermostat, while you down and in
there,
> ya might as well replace the timing belt and the water pump.
>
> Dave
> RS6
Yes, definitely, if you're replacing the thermostat, the TB and WP should
also be considered unless they've been recently replaced. I still think the
OP will discover it's the sensor.
#15
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
"Dave LaCourse" <davplac@aol.comPirate> wrote in message
news:20050128201325.10996.00000368@mb-m28.aol.com...
> Ian writes:
>
> >Thermostats usually fail by sticking in some
> >position so the behavior you describe is unlikely. .
>
> I agree. But, on the chance it *is* a thermostat, while you down and in
there,
> ya might as well replace the timing belt and the water pump.
>
> Dave
> RS6
Yes, definitely, if you're replacing the thermostat, the TB and WP should
also be considered unless they've been recently replaced. I still think the
OP will discover it's the sensor.
news:20050128201325.10996.00000368@mb-m28.aol.com...
> Ian writes:
>
> >Thermostats usually fail by sticking in some
> >position so the behavior you describe is unlikely. .
>
> I agree. But, on the chance it *is* a thermostat, while you down and in
there,
> ya might as well replace the timing belt and the water pump.
>
> Dave
> RS6
Yes, definitely, if you're replacing the thermostat, the TB and WP should
also be considered unless they've been recently replaced. I still think the
OP will discover it's the sensor.
#16
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
"Dave LaCourse" <davplac@aol.comPirate> wrote in message
news:20050128201325.10996.00000368@mb-m28.aol.com...
> Ian writes:
>
> >Thermostats usually fail by sticking in some
> >position so the behavior you describe is unlikely. .
>
> I agree. But, on the chance it *is* a thermostat, while you down and in
there,
> ya might as well replace the timing belt and the water pump.
>
> Dave
> RS6
Yes, definitely, if you're replacing the thermostat, the TB and WP should
also be considered unless they've been recently replaced. I still think the
OP will discover it's the sensor.
news:20050128201325.10996.00000368@mb-m28.aol.com...
> Ian writes:
>
> >Thermostats usually fail by sticking in some
> >position so the behavior you describe is unlikely. .
>
> I agree. But, on the chance it *is* a thermostat, while you down and in
there,
> ya might as well replace the timing belt and the water pump.
>
> Dave
> RS6
Yes, definitely, if you're replacing the thermostat, the TB and WP should
also be considered unless they've been recently replaced. I still think the
OP will discover it's the sensor.
#17
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
The easiest thing to replace is the temp sensor. I just had an issue
with my 2001 A8 where my needle used to run about 1/4 on the gauge and
then started going to half, and eventually 3/4. The car had plenty of
heat and although it never overheated, it would run high enough so the
electric fan would click in on high speed. It turned out to be a
thermostat. If it were a Chevy, it would have been about 4 bucks and a
15 minute job but seeing how it's an Audi, it was $2026 and 2 days. It
was about time to do a timing belt so that service, along with a water
pump, pulleys, thermostat, tensioner, serpentine belt, and antifreeze
were all replaced at once. Just the thermostat would have been about
$1000 due to the labor involved in getting to the $14 part.
If your car has around 80k on it and the timing belt hasn't been
serviced, you should get it done. I had a 98 A6 that I did the timing
belt on and it wasn't that difficult. You have to buy a couple of
special tools though. One tool locks the crankshaft at the top dead
center position for the number one cylinder and the other holds the cams
in place so you can keep them aligned with the crank shaft. I think they
are about $140 for both. The parts you will need will cost you about
$200-$300 Wich will include thermostat and gasket, water pump and
gasket, timing belt, crankshaft seal, serpentine belt, tensioner pulley,
and idler pully.
Good luck! Dennis
Ed H. wrote:
> This just started happening. On cold mornings the engine takes a while
> to warm up - say 4-5 minutes after driving. Used to be much quicker.
>
> Now the really odd thing is the water temp gauge (no degrees, just
> marks) used to be just to the left (cool side) of top dead center when
> warm. Now, it will go straight up, then in a few minutes, actually
> fall to almost where the "C" is and then move up again. Would a bad
> thermostat cause the needle to swing wildly like this? I originally
> thought it was the thermostat until the gauge did this strange
> maneuver and now I am wondering if is the sensor out of whack.
>
> The oil temp seems to be fine.
>
> 98 Audi A4 V6, 2.8l Quattro, 5spd. US model.
with my 2001 A8 where my needle used to run about 1/4 on the gauge and
then started going to half, and eventually 3/4. The car had plenty of
heat and although it never overheated, it would run high enough so the
electric fan would click in on high speed. It turned out to be a
thermostat. If it were a Chevy, it would have been about 4 bucks and a
15 minute job but seeing how it's an Audi, it was $2026 and 2 days. It
was about time to do a timing belt so that service, along with a water
pump, pulleys, thermostat, tensioner, serpentine belt, and antifreeze
were all replaced at once. Just the thermostat would have been about
$1000 due to the labor involved in getting to the $14 part.
If your car has around 80k on it and the timing belt hasn't been
serviced, you should get it done. I had a 98 A6 that I did the timing
belt on and it wasn't that difficult. You have to buy a couple of
special tools though. One tool locks the crankshaft at the top dead
center position for the number one cylinder and the other holds the cams
in place so you can keep them aligned with the crank shaft. I think they
are about $140 for both. The parts you will need will cost you about
$200-$300 Wich will include thermostat and gasket, water pump and
gasket, timing belt, crankshaft seal, serpentine belt, tensioner pulley,
and idler pully.
Good luck! Dennis
Ed H. wrote:
> This just started happening. On cold mornings the engine takes a while
> to warm up - say 4-5 minutes after driving. Used to be much quicker.
>
> Now the really odd thing is the water temp gauge (no degrees, just
> marks) used to be just to the left (cool side) of top dead center when
> warm. Now, it will go straight up, then in a few minutes, actually
> fall to almost where the "C" is and then move up again. Would a bad
> thermostat cause the needle to swing wildly like this? I originally
> thought it was the thermostat until the gauge did this strange
> maneuver and now I am wondering if is the sensor out of whack.
>
> The oil temp seems to be fine.
>
> 98 Audi A4 V6, 2.8l Quattro, 5spd. US model.
#18
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
The easiest thing to replace is the temp sensor. I just had an issue
with my 2001 A8 where my needle used to run about 1/4 on the gauge and
then started going to half, and eventually 3/4. The car had plenty of
heat and although it never overheated, it would run high enough so the
electric fan would click in on high speed. It turned out to be a
thermostat. If it were a Chevy, it would have been about 4 bucks and a
15 minute job but seeing how it's an Audi, it was $2026 and 2 days. It
was about time to do a timing belt so that service, along with a water
pump, pulleys, thermostat, tensioner, serpentine belt, and antifreeze
were all replaced at once. Just the thermostat would have been about
$1000 due to the labor involved in getting to the $14 part.
If your car has around 80k on it and the timing belt hasn't been
serviced, you should get it done. I had a 98 A6 that I did the timing
belt on and it wasn't that difficult. You have to buy a couple of
special tools though. One tool locks the crankshaft at the top dead
center position for the number one cylinder and the other holds the cams
in place so you can keep them aligned with the crank shaft. I think they
are about $140 for both. The parts you will need will cost you about
$200-$300 Wich will include thermostat and gasket, water pump and
gasket, timing belt, crankshaft seal, serpentine belt, tensioner pulley,
and idler pully.
Good luck! Dennis
Ed H. wrote:
> This just started happening. On cold mornings the engine takes a while
> to warm up - say 4-5 minutes after driving. Used to be much quicker.
>
> Now the really odd thing is the water temp gauge (no degrees, just
> marks) used to be just to the left (cool side) of top dead center when
> warm. Now, it will go straight up, then in a few minutes, actually
> fall to almost where the "C" is and then move up again. Would a bad
> thermostat cause the needle to swing wildly like this? I originally
> thought it was the thermostat until the gauge did this strange
> maneuver and now I am wondering if is the sensor out of whack.
>
> The oil temp seems to be fine.
>
> 98 Audi A4 V6, 2.8l Quattro, 5spd. US model.
with my 2001 A8 where my needle used to run about 1/4 on the gauge and
then started going to half, and eventually 3/4. The car had plenty of
heat and although it never overheated, it would run high enough so the
electric fan would click in on high speed. It turned out to be a
thermostat. If it were a Chevy, it would have been about 4 bucks and a
15 minute job but seeing how it's an Audi, it was $2026 and 2 days. It
was about time to do a timing belt so that service, along with a water
pump, pulleys, thermostat, tensioner, serpentine belt, and antifreeze
were all replaced at once. Just the thermostat would have been about
$1000 due to the labor involved in getting to the $14 part.
If your car has around 80k on it and the timing belt hasn't been
serviced, you should get it done. I had a 98 A6 that I did the timing
belt on and it wasn't that difficult. You have to buy a couple of
special tools though. One tool locks the crankshaft at the top dead
center position for the number one cylinder and the other holds the cams
in place so you can keep them aligned with the crank shaft. I think they
are about $140 for both. The parts you will need will cost you about
$200-$300 Wich will include thermostat and gasket, water pump and
gasket, timing belt, crankshaft seal, serpentine belt, tensioner pulley,
and idler pully.
Good luck! Dennis
Ed H. wrote:
> This just started happening. On cold mornings the engine takes a while
> to warm up - say 4-5 minutes after driving. Used to be much quicker.
>
> Now the really odd thing is the water temp gauge (no degrees, just
> marks) used to be just to the left (cool side) of top dead center when
> warm. Now, it will go straight up, then in a few minutes, actually
> fall to almost where the "C" is and then move up again. Would a bad
> thermostat cause the needle to swing wildly like this? I originally
> thought it was the thermostat until the gauge did this strange
> maneuver and now I am wondering if is the sensor out of whack.
>
> The oil temp seems to be fine.
>
> 98 Audi A4 V6, 2.8l Quattro, 5spd. US model.
#19
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
The easiest thing to replace is the temp sensor. I just had an issue
with my 2001 A8 where my needle used to run about 1/4 on the gauge and
then started going to half, and eventually 3/4. The car had plenty of
heat and although it never overheated, it would run high enough so the
electric fan would click in on high speed. It turned out to be a
thermostat. If it were a Chevy, it would have been about 4 bucks and a
15 minute job but seeing how it's an Audi, it was $2026 and 2 days. It
was about time to do a timing belt so that service, along with a water
pump, pulleys, thermostat, tensioner, serpentine belt, and antifreeze
were all replaced at once. Just the thermostat would have been about
$1000 due to the labor involved in getting to the $14 part.
If your car has around 80k on it and the timing belt hasn't been
serviced, you should get it done. I had a 98 A6 that I did the timing
belt on and it wasn't that difficult. You have to buy a couple of
special tools though. One tool locks the crankshaft at the top dead
center position for the number one cylinder and the other holds the cams
in place so you can keep them aligned with the crank shaft. I think they
are about $140 for both. The parts you will need will cost you about
$200-$300 Wich will include thermostat and gasket, water pump and
gasket, timing belt, crankshaft seal, serpentine belt, tensioner pulley,
and idler pully.
Good luck! Dennis
Ed H. wrote:
> This just started happening. On cold mornings the engine takes a while
> to warm up - say 4-5 minutes after driving. Used to be much quicker.
>
> Now the really odd thing is the water temp gauge (no degrees, just
> marks) used to be just to the left (cool side) of top dead center when
> warm. Now, it will go straight up, then in a few minutes, actually
> fall to almost where the "C" is and then move up again. Would a bad
> thermostat cause the needle to swing wildly like this? I originally
> thought it was the thermostat until the gauge did this strange
> maneuver and now I am wondering if is the sensor out of whack.
>
> The oil temp seems to be fine.
>
> 98 Audi A4 V6, 2.8l Quattro, 5spd. US model.
with my 2001 A8 where my needle used to run about 1/4 on the gauge and
then started going to half, and eventually 3/4. The car had plenty of
heat and although it never overheated, it would run high enough so the
electric fan would click in on high speed. It turned out to be a
thermostat. If it were a Chevy, it would have been about 4 bucks and a
15 minute job but seeing how it's an Audi, it was $2026 and 2 days. It
was about time to do a timing belt so that service, along with a water
pump, pulleys, thermostat, tensioner, serpentine belt, and antifreeze
were all replaced at once. Just the thermostat would have been about
$1000 due to the labor involved in getting to the $14 part.
If your car has around 80k on it and the timing belt hasn't been
serviced, you should get it done. I had a 98 A6 that I did the timing
belt on and it wasn't that difficult. You have to buy a couple of
special tools though. One tool locks the crankshaft at the top dead
center position for the number one cylinder and the other holds the cams
in place so you can keep them aligned with the crank shaft. I think they
are about $140 for both. The parts you will need will cost you about
$200-$300 Wich will include thermostat and gasket, water pump and
gasket, timing belt, crankshaft seal, serpentine belt, tensioner pulley,
and idler pully.
Good luck! Dennis
Ed H. wrote:
> This just started happening. On cold mornings the engine takes a while
> to warm up - say 4-5 minutes after driving. Used to be much quicker.
>
> Now the really odd thing is the water temp gauge (no degrees, just
> marks) used to be just to the left (cool side) of top dead center when
> warm. Now, it will go straight up, then in a few minutes, actually
> fall to almost where the "C" is and then move up again. Would a bad
> thermostat cause the needle to swing wildly like this? I originally
> thought it was the thermostat until the gauge did this strange
> maneuver and now I am wondering if is the sensor out of whack.
>
> The oil temp seems to be fine.
>
> 98 Audi A4 V6, 2.8l Quattro, 5spd. US model.
#20
Guest
Posts: n/a
Re: Strange coolant temp guage movement - 98 A4 V6
davplac@aol.comPirate (Dave LaCourse) wrote:
>Ian writes:
>
>>Thermostats usually fail by sticking in some
>>position so the behavior you describe is unlikely. .
>
>I agree. But, on the chance it *is* a thermostat, while you down and in there,
>ya might as well replace the timing belt and the water pump.
Well, I hope it is the sensor. I described the behavior to them Friday
and they agreed with the general opinion. I had the timing belt and
timing belt tensioner replaced in December. I'd hate to go through
much of that expense again if it is the thermostat.
--
___________________________
Make your PC part of the largest computer in the world
See http://www.seti-inst.edu/setiathome.html for more info
>Ian writes:
>
>>Thermostats usually fail by sticking in some
>>position so the behavior you describe is unlikely. .
>
>I agree. But, on the chance it *is* a thermostat, while you down and in there,
>ya might as well replace the timing belt and the water pump.
Well, I hope it is the sensor. I described the behavior to them Friday
and they agreed with the general opinion. I had the timing belt and
timing belt tensioner replaced in December. I'd hate to go through
much of that expense again if it is the thermostat.
--
___________________________
Make your PC part of the largest computer in the world
See http://www.seti-inst.edu/setiathome.html for more info