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AuthorTopic: Misfire under load - V8i  (Read 1008 times)

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Offline hodgei

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Misfire under load - V8i
« on: April 13, 2010, 09:07:50 »
Guys,

I need some help diagnosing an issue I have with my '94 (MA) V8i.

I drove down to Limerick over the weekend and all was well until halfway into the return.
I filled up with fuel ( Shell ) and an hour later started to get misfiring under load and loss of power.
It got gradually worse until I pulled over to take a look.

Stop the truck - switch off and get out - nothing loose or too hot - fire it back up and it's running sweetly.
Take off with no problems - but 30 mins or so later it starts to misfire again.
Switch off the engine - count to 5 and start it again and I'm good to go for another 30 mins...  :shock:

Coincidentaly, my SRS warning light started to come on - with the last "S" flashing - it flashes for a while and then goes solid on.


Anyone have any ideas - or access to a Testbook to plug the beast into?

Regards,

Iain.
 
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1994 Disco V8i - Stock for now... :P
I'm doing my bit for the environment - I'm offsetting - at least, I park my V8 next to a Prius at work - does that count?
1999 Honda NTV650 Deauville
2004 Jaguar X-Type Estate - for the wife ;-)

Offline Range Rover Blues

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Re: Misfire under load - V8i
« Reply #1 on: April 14, 2010, 16:15:34 »
Sounds like mine when the coil went.
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Offline hodgei

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Re: Misfire under load - V8i
« Reply #2 on: April 20, 2010, 08:02:28 »
 :'( not the coil - replaced that and seems to be getting worse...

Very odd - drove 170 miles on Sunday - first 70 miles OK - then started to struggle  :sad:

Last 45 miles, I had to stop and restart the engine every 5 miles or so  :huh:

I'll try the fuel pump next

Keep you all posted on the investigations  8-[
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1994 Disco V8i - Stock for now... :P
I'm doing my bit for the environment - I'm offsetting - at least, I park my V8 next to a Prius at work - does that count?
1999 Honda NTV650 Deauville
2004 Jaguar X-Type Estate - for the wife ;-)

Offline Devon-Rover

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Re: Misfire under load - V8i
« Reply #3 on: April 20, 2010, 12:11:13 »
Condensor?
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