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Discussion Starter · #1 ·
can anybody help, i have a 1997 DB7 3.2, when i put on the blower for the heater/cooling the temp gauge instantly moves into the red, the car isn't over heating the pointer just goes into the red, when i turn the blower off bingo the pointer instantly returns to normal running temp. I'm baffled !!!!!!!!!!!
 

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Discussion Starter · #5 ·
thanks for your reply solardone, well there's not much more i can tell you but the other day i noticed that when i put the lights on the same thing happened i.e. temperature gauge pointer rose to just below the red when i turned them off the pointer went back to normal pointing around the 12 O'clock mark. I spoke to an AM specialist who was also baffled by it, the only thing he thought it could be is a bad earth, any ideas will be more than welcome.
Thanks.
 

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Discussion Starter · #7 · (Edited)
Cheers solardone, i'll do some investigations and get back to ya one thing i did notice the other day whether it's connected to the problem i don't know but when i took the face off the stereo it was very hot. Not Nice, is there a chance that when the after market stereo was fitted the wiring could of been dusturbed or maybe damaged ? as i said before i spoke to an AM specialist who was also baffled but did not see it as a major problem, he said he could understand if the temp gauge read lower i.e. power drain when other electrical operated systems in use.

Thanks
 

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Discussion Starter · #8 ·
Hi Solardone, the problem doesn't seem to be affecting the oil pressure gauge but i have found that when put on any any high load electrical system i.e. heating/cooling blower, (the higher speed i put it on the more the temp gauge needle rises) head lights (not side lights) rear window heater, these all have the same affect on the temp gauge needle. I'm well bloody confused.
 

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Discussion Starter · #10 ·
Thanks Solardone much appreciated, i will get to the bottom of this problem if it kills me i bet it's something really stupid, I HOPE.
 

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Discussion Starter · #12 ·
cheers solardone i'm off on me hols and the Aston is going in storage so i'll have a look when i get back lets hope it's the answer to my woes.
 

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Discussion Starter · #15 · (Edited)
thanks

Cheers Gil, i'll give that a try and fingers crossed it will sort out my on going problem.

Well Gil i have been looking on the Net for the heat sensor but it seems that there is more than one, so excuse my ignorance but could you give me a bit more info on what sensor i am looking for.


Many Thanks.
 

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Discussion Starter · #18 ·
heat sensor

Hi ya Gil,
Did you manage to find the part number for the heat sensor that you thought might be the cause of my on going temp gauge fluctuation problem ?

Thanks Pete.
 

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Discussion Starter · #20 ·
Thanks very much Gil,
I'll get that sorted and let you know how it goes, please let it be the cure it's not nice driving about with the temp gauge almost in the red.

Cheers Pete.
 

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Discussion Starter · #21 ·
Hi ya Gil,
sorry i haven't got back on the forum but i've been in the process of moving ( i can now get the Aston in my garage no more storage cost's) going on holiday and working but i have finally got to change the heat sensor, full of hope but NO the temp gauge is still affected by blower,screen heater,A.C. etc, I've asked around but no joy, have you got any more thoughts on the problem ?

Cheers Pete
 

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Discussion Starter · #23 ·
Cheers Gil,
I shall go to a few garages and see if they can shed some light on the problem also look at investing in a fault analyser, I'll keep ya posted.

Cheers again
 
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