Omega Owners Forum - Temp Gauge problems

Lesopc

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Temp Gauge problems
12. Feb 2011 at 12:34

Hi guy's, i seem to keep having problems with the temperature gauge on my 2.0. It usually doesn't react for the first 5 or so minutes after startup (usual in order to reach operating temp) but then it shoots to the centre of the dial (90 degrees?) quickly like it has just got a sudden reading. It then stays for 1 to 2 minutes then the reading drops off as suddenly as it first came on.

Is this common?
Is there a specific part responsible?

Obviously i don't want to drive it forever with no temp reading the majority of the time as i may not know until it's too late if it decides to overheat one day.

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Why oh why was there never a V8 Omega????
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Look forward to the Cadillac ATS & ATS-V. Maybe a re-badged one will replace the Miggy as a RWD runner?

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andymac

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Drives: Omega CDX 2.5 V6 Auto

Re: Temp Gauge problems
Reply #1 - 12. Feb 2011 at 13:35

I am no expert on Omegas (far from it) but the temp gauge needle on my Omega CDX should reside at a 45 degree angle from the horizontal. If its at 90 degrees from the horizontal that's at the top of the gauge in the red ? Has the 2.0 version got a different layout ?

http://carphotos.cardomain.com/ride_images/1/1102/1001/2753000022_large.jpg

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Lesopc

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Re: Temp Gauge problems
Reply #2 - 12. Feb 2011 at 17:35

andymac wrote on 12. Feb 2011 at 13:35:

I am no expert on Omegas (far from it) but the temp gauge needle on my Omega CDX should reside at a 45 degree angle from the horizontal. If its at 90 degrees from the horizontal that's at the top of the gauge in the red ? Has the 2.0 version got a different layout ?

No, i believe that i have made myself misunderstood. The needle goes up to 95 degrees centigrade, which also translates as the 45 degree angle on the dial. Hope this helps.
http://carphotos.cardomain.com/ride_images/1/1102/1001/2753000022_large.jpg

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« Last Edit: 12. Feb 2011 at 17:36 by Lesopc »

Why oh why was there never a V8 Omega????
Such a missed oppurtunity.
Look forward to the Cadillac ATS & ATS-V. Maybe a re-badged one will replace the Miggy as a RWD runner?

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RobG Omega Lord Offline I might have a link, pic or part number for that Posts: 7968 Bristol Gender: Drives: 53 plate 2.2 CD auto	Re: Temp Gauge problems Reply #3 - 12. Feb 2011 at 17:43 Back of the engine, there`s a casting that the EGR is bolted to (and dispack if not DBW) Single wire push connector controls actual gauge, connector adjacent sends temp info to engine ECU
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Abiton Omega Knight Offline Posts: 1064 Under Bonnet, nr Abingdon Gender: Drives: Mk2 Golf, but the missus has a '96 2.0 'Select' woohoo!	Re: Temp Gauge problems Reply #4 - 12. Feb 2011 at 17:49 What he said ^ Sounds like the connection is intermittent, and wouold benefit from a clean-up, pinch-up sort of thing. Access is the only difficulty.
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Lesopc Intermediate Member Offline Worlds Biggest GM Fan Posts: 294 West London Gender: Drives: W plate 2000 Vauxhall Omega 2.0 GLS Manual Saloon	Re: Temp Gauge problems Reply #5 - 12. Feb 2011 at 18:12 Abiton wrote on 12. Feb 2011 at 17:49: What he said ^ [img] Sounds like the connection is intermittent, and wouold benefit from a clean-up, pinch-up sort of thing. Access is the only difficulty. Tell me more someone please.
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Lesopc Intermediate Member Offline Worlds Biggest GM Fan Posts: 294 West London Gender: Drives: W plate 2000 Vauxhall Omega 2.0 GLS Manual Saloon	Re: Temp Gauge problems Reply #6 - 12. Feb 2011 at 18:14 Would i need any specialist tools or cleaners to sort this issue???
Back to top	Why oh why was there never a V8 Omega???? Such a missed oppurtunity. Look forward to the Cadillac ATS & ATS-V. Maybe a re-badged one will replace the Miggy as a RWD runner? IP Logged

Andy B Over Active Poster Offline Posts: 21988 Bury Lancs Gender: Drives: 1999 3.0 Elite auto/TDM	Re: Temp Gauge problems Reply #7 - 12. Feb 2011 at 18:20 Lesopc wrote on 12. Feb 2011 at 18:12: Abiton wrote on 12. Feb 2011 at 17:49: What he said ^ [img]and wouold benefit from a clean-up, pinch-up sort of thing.[/highlight] Access is the only difficulty. Tell me more someone please. What more is there to say?
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Andy B Over Active Poster Offline Posts: 21988 Bury Lancs Gender: Drives: 1999 3.0 Elite auto/TDM	Re: Temp Gauge problems Reply #8 - 12. Feb 2011 at 18:21 Lesopc wrote on 12. Feb 2011 at 18:14: Would i need any specialist tools or cleaners to sort this issue??? pliers & a bit of emery cloth/wet'n'dry/wife's nail file
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Lizzie Zoom

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Re: Temp Gauge problems
Reply #9 - 12. Feb 2011 at 18:35

Lesopc wrote on 12. Feb 2011 at 18:12:

Abiton wrote on 12. Feb 2011 at 17:49:

What he said ^

[img]

Sounds like the connection is intermittent, and wouold benefit from a clean-up, pinch-up sort of thing.

Access is the only difficulty. Roll Eyes

Tell me more someone please.

On a non-V6 engine it should be a doddle to get to and pinch / clean up the spade connector Cheesy

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Prev: A40;Escort's 1.1 Mk1's;Cortina's 1.6 Mk2/3/4/5;Cav. 1.6 & 1.8SRi;Carlton's Mk1/2 1.8GL & 2.0CD's; 1968 Wol. Hornet III; 1958 Duple Coach; Senator 3.0CD; Omega 3.0Elite;Carina II 1.6GL;Omega 2.5 CDX

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Abiton Omega Knight Offline Posts: 1064 Under Bonnet, nr Abingdon Gender: Drives: Mk2 Golf, but the missus has a '96 2.0 'Select' woohoo!	Re: Temp Gauge problems Reply #10 - 12. Feb 2011 at 19:03 I don't know if you've tried it on a 2.0 Lizzie, but I would guess not. It may be worse on a V6, but it is not a doddle at all on the 2.0; 2.2 would be easier due to absence of DIS.
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Shane dub rydda Intermediate Member Offline Posts: 265 maidenhead Gender: Drives: Factory irmscher wiggly stick conversion 3.0v6.my wifey has an elite auto 3.0v6	Re: Temp Gauge problems Reply #11 - 13. Feb 2011 at 12:46 either that or go and buy a plasma temp gauge kit and fit that until you get time to trace the problem. A friend of mine has got the same problem but has put a plasma guage in for now until he can get time to sort it out, works fine.
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Lizzie Zoom

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Re: Temp Gauge problems
Reply #12 - 13. Feb 2011 at 12:51

Abiton wrote on 12. Feb 2011 at 19:03:

I don't know if you've tried it on a 2.0 Lizzie, but I would guess not. Huh

It may be worse on a V6, but it is not a doddle at all on the 2.0; 2.2 would be easier due to absence of DIS.

I must admit you are right on that, although I have worked on other 2ltr cars Wink

I thought, wrongly as it appears, that far less would be in the way to get to the spade connector than on a V6 Wink

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Prev: A40;Escort's 1.1 Mk1's;Cortina's 1.6 Mk2/3/4/5;Cav. 1.6 & 1.8SRi;Carlton's Mk1/2 1.8GL & 2.0CD's; 1968 Wol. Hornet III; 1958 Duple Coach; Senator 3.0CD; Omega 3.0Elite;Carina II 1.6GL;Omega 2.5 CDX

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Lesopc

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West London
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Drives: W plate 2000 Vauxhall Omega 2.0 GLS Manual Saloon

Re: Temp Gauge problems
Reply #13 - 14. Feb 2011 at 16:00

When you say that this unit is at the back of the engine block, i take it you mean that it is under the shroud below the windscreen. I cannot however spot what i am looking for at present so does anyone know where exactly i should be looking. Also are there any special tools needed to get to it and/or remove it if necessary. I thank all who have replied so far as well as anyone who replies forthwith.

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Why oh why was there never a V8 Omega????
Such a missed oppurtunity.
Look forward to the Cadillac ATS & ATS-V. Maybe a re-badged one will replace the Miggy as a RWD runner?

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RobG Omega Lord Offline I might have a link, pic or part number for that Posts: 7968 Bristol Gender: Drives: 53 plate 2.2 CD auto	Re: Temp Gauge problems Reply #14 - 14. Feb 2011 at 16:10 Under the windscreen scuttle. If you follow your HT leads back to the Dis, then the connections are between the dispack & EGR
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