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Author Topic: 2.5 petrol manual estate misfiring  (Read 10353 times)

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terry paget

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Re: 2.5 petrol manual estate misfiring
« Reply #75 on: 16 August 2018, 08:27:53 »

One more sympton. It does not misfire under load until thoroughly warmed up.
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Tick Tock

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Re: 2.5 petrol manual estate misfiring
« Reply #76 on: 16 August 2018, 11:02:07 »

Thanks Doc. Placing my old purge valve alongside my new found valve, I discover that they are identical, except someone has blanked off a pipe on the old valve.

As it came with the correct hose I installed it with hose from RH wing one side and hose to breather bridge on the other. Reassembled everything and took it for test drive.
Perfect for the first 10 miles, then it got hilly. Then the engine got hot, 100 degrees, and it misfired full throttle 4th gear 25mph. Got home, the engine overheating symbol flickered on, fans were blowing, temperature slowly fell to 95. I suspect blocked radiator.

Thoroughly warmed up? Do you mean it's hitting 100 degrees still? I know you changed the rad, so what temp do the fans kick in?
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Omega 2.5 V6 Facelift Estates, a CD & a CDX both in the rare star silver colour.

terry paget

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Re: 2.5 petrol manual estate misfiring
« Reply #77 on: 16 August 2018, 12:53:30 »

It doesn't get quite as hot in normal use, maybe the old rad was blocked. Sitting idling, the fan kicks in again at about 100 degrees, and drops out at 95, so no change there.
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TheBoy

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Re: 2.5 petrol manual estate misfiring
« Reply #78 on: 16 August 2018, 17:20:16 »

Hmmm 30? Did you mean 31?
Opps, yes. 31=normal for v6 if engine not running.
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terry paget

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Re: 2.5 petrol manual estate misfiring
« Reply #79 on: 02 September 2018, 17:06:58 »

Gentlemen,
                following the differential change last week, this car is running sweet as a nut. This afternoon I took it for an extended test drive, down Burrington Combe and up Cheddar Gorge, and it never missed a beat, or overheated. I thank you all for your advice and encouragement. This forum is wonderful.
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