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AuthorTopic: bad 3.5 v8  (Read 1410 times)

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Offline turbonutter

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bad 3.5 v8
« on: November 24, 2008, 16:45:09 »
whats your thoughts please .........

my missis has a 89 f 3.5 efi v8

it started to play up last week with cold starting , like the auto choke wasnt working , when it was warm it ran fine

now it dosent like running when warm ? its will not idle and splutters when rev'd

iv had a little play with it , changed the air flow meter and it was running fine , my missis drove it , when she came back it was running rough again
also changed the injector thats in the inlet manifold with no difference

any thoughts with this ? not had much experiance with the landy v8
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Offline clbarclay

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Re: bad 3.5 v8
« Reply #1 on: November 24, 2008, 23:15:08 »
Have you remvoed a spark plug or 2 to see if its running rich/lean etc?
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Chris

Various range rovers from 1986 to 1988 in various states
Locost sports car based on mk2 escort - currently working on brakes, fuel and wiring

Offline turbonutter

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Re: bad 3.5 v8
« Reply #2 on: November 24, 2008, 23:27:34 »
it seems to wet the plugs up very easy if u dont keep it running



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Offline turbonutter

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Re: bad 3.5 v8
« Reply #3 on: November 25, 2008, 13:56:24 »
no idears with this ?????

it looks like its over fueling , if u dont keep the revs up when started it will flood also when it does run its popping lots
 
where ment to be green laning on sunday so trying to figure out whats wrong asap
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Offline clbarclay

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Re: bad 3.5 v8
« Reply #4 on: November 25, 2008, 15:36:55 »
It may be the engine temp sensor for the EFi is broken. I'm pretty sure that was what was causing mine similare problems a while ago. They are cheap enough to replace.
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Chris

Various range rovers from 1986 to 1988 in various states
Locost sports car based on mk2 escort - currently working on brakes, fuel and wiring

Offline andyb

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Re: bad 3.5 v8
« Reply #5 on: November 25, 2008, 17:13:33 »
Sounds like temperature sensor to me too. Cheap enough to change and eliminate at least :)
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Offline turbonutter

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Re: bad 3.5 v8
« Reply #6 on: November 25, 2008, 18:49:43 »
iv had a play around
to me it was like a air flow problem , as when u disconected the air flow meter it would idle perfect just not rev
as iv all rady tryed 2 meters i doubt it was that , so i changed the "extra air valve" i was given a sack of air flow meters sensors and ecu's when my missis bought the truck !!

since iv changed the extra valve it seems to be running lots beter , it still stalls sometimes tho

the temp sensor for the ecu is one of the two that are just infront of the thermostat housing ?   
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