Home > Technical (L322) > 4.2 SC overheating |
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Spud Member Since: 12 Jul 2019 Location: Asif by Magic Posts: 130 |
Does it only overheat under load? 2006 4.2 SC |
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3rd May 2020 8:29am |
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ivan1566 Member Since: 15 Feb 2019 Location: Dubai Posts: 19 |
seems to be... I can have it idling outside the house after bleeding and it doesnt seem to get over hot... plus the gauge is bang on centre. |
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3rd May 2020 9:05am |
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Spud Member Since: 12 Jul 2019 Location: Asif by Magic Posts: 130 |
Had water pump impellers come adrift before causing similar issues. Would be fine until you drove vehicle. Would be checking that and also the thermostat before pulling the heads. 2006 4.2 SC |
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3rd May 2020 9:28am |
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ivan1566 Member Since: 15 Feb 2019 Location: Dubai Posts: 19 |
Many thanks Spud, I'll do that... |
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3rd May 2020 9:39am |
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ivan1566 Member Since: 15 Feb 2019 Location: Dubai Posts: 19 |
So, water pump fine and thermostat being changed...... will update once back together..... |
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3rd May 2020 10:11am |
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dingg1 Member Since: 29 Jun 2013 Location: PORTUGAL Posts: 1345 |
Get a sniff test on the coolant done, should confirm whether gaskets are still intact or compromised |
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3rd May 2020 10:16am |
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dingg1 Member Since: 29 Jun 2013 Location: PORTUGAL Posts: 1345 |
Just reread your op and it seems like the garage has already done that, sniff test, you don't want to accept it, soo try the test at another garage, then if you're not going to like to have the heads removed try some k seal repair ointment in there, nothing to lose at that stage. |
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3rd May 2020 10:19am |
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ivan1566 Member Since: 15 Feb 2019 Location: Dubai Posts: 19 |
Thanks Dinng1, I was thinking of using the sealant if they come back with the we were unable to fix and a potential for a massive bill.... always a last resort..... |
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3rd May 2020 10:56am |
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ivan1566 Member Since: 15 Feb 2019 Location: Dubai Posts: 19 |
Sorry Dinng1, their response was very vague about the sniff test.... didnt say it was the gaskets or not... just said they need to strip down and look at internals..... end of the day if its stripped down they might as well do the gaskets anyway as the labour charge i have to pay anyway..... just dont want to have a massive parts bill on top if i can help it. |
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3rd May 2020 10:59am |
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Spud Member Since: 12 Jul 2019 Location: Asif by Magic Posts: 130 |
How vague do you need to be on a sniff test? After all you're only testing for hydrocarbons in the coolant system. There either is or is not any. 2006 4.2 SC |
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3rd May 2020 11:34am |
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ivan1566 Member Since: 15 Feb 2019 Location: Dubai Posts: 19 |
I know, that's why I was nervous when they said it was head gasket, just as an excuse to charge the labour..... all i got from them was the pressure was leaking.... |
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3rd May 2020 11:37am |
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Spud Member Since: 12 Jul 2019 Location: Asif by Magic Posts: 130 |
Find a different garage with a 4 gas analyser. 2006 4.2 SC |
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3rd May 2020 11:38am |
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ivan1566 Member Since: 15 Feb 2019 Location: Dubai Posts: 19 |
Thanks All, head gasket had indeed blown... but it didnt get me out of a hefty labour charge for rectification as they chose to remove the engine to do the work....... However, bitten the bullet and had it rectified.
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10th May 2020 5:34am |
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