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Car Problems(again) Diesel/fuel/starvation
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<blockquote data-quote="Channel Hopper" data-source="post: 138498" data-attributes="member: 175144"><p>I need advice from an expert before parting with more cash </p><p></p><p></p><p>Citroen 1.9 turbo diesel engine (from a Xanthia I think). Fitted into a petrol BX by previous owner and conversion to all fuel lines done</p><p></p><p>A week ago coming back from Kettering I found that the top end reduced from about 80 to 70 to 60, but she got me home without any real problems. Two nights ago the car failed to get to 30 and then stalled at the lights. I took a few minutes to have a look under the bonnet and then started the car without real trouble.</p><p></p><p>A mile later and exactly the same thing happened. </p><p></p><p>1) I put it down to fuel starvation and so ordered a new fuel filter. No change. </p><p>2) Cleaned out the (plenum?) chanmber at the top of the injector system , which had some crud in it. No change.</p><p>3) Took the fuel pump out from under the rear wheel and ran it on a battery, seems to be fine.</p><p></p><p>4) Today Ive tried taking the pipes off the fuel tank to see if there is a blockage but got stuck on how to get the fuel out first (some anti syphoning system in place) </p><p>5) Blew down the tank inlet and found that there is quite a bit of pressure, even with the pump removed</p><p></p><p>Question - Should I first suspect the puel pump and look at a substitute before trying the tank lines ? I do not know what pressure these are supposed to be, nor how the car supplies a voltage to it (do these run all the time or only when the pressure in the injector system falls below a certain level?)</p><p>Is there a sensor that determines the pump flow and frequency ?</p><p></p><p>As with all Citroens I have to have the engine running to operate the hydraulics so I can get under her, so I dont want to take too much apart just in case I really have trouble in pumping the suspension back up again.</p><p></p><p>All advice greatfully received</p><p></p><p>PS I hate working under cars</p></blockquote><p></p>
[QUOTE="Channel Hopper, post: 138498, member: 175144"] I need advice from an expert before parting with more cash Citroen 1.9 turbo diesel engine (from a Xanthia I think). Fitted into a petrol BX by previous owner and conversion to all fuel lines done A week ago coming back from Kettering I found that the top end reduced from about 80 to 70 to 60, but she got me home without any real problems. Two nights ago the car failed to get to 30 and then stalled at the lights. I took a few minutes to have a look under the bonnet and then started the car without real trouble. A mile later and exactly the same thing happened. 1) I put it down to fuel starvation and so ordered a new fuel filter. No change. 2) Cleaned out the (plenum?) chanmber at the top of the injector system , which had some crud in it. No change. 3) Took the fuel pump out from under the rear wheel and ran it on a battery, seems to be fine. 4) Today Ive tried taking the pipes off the fuel tank to see if there is a blockage but got stuck on how to get the fuel out first (some anti syphoning system in place) 5) Blew down the tank inlet and found that there is quite a bit of pressure, even with the pump removed Question - Should I first suspect the puel pump and look at a substitute before trying the tank lines ? I do not know what pressure these are supposed to be, nor how the car supplies a voltage to it (do these run all the time or only when the pressure in the injector system falls below a certain level?) Is there a sensor that determines the pump flow and frequency ? As with all Citroens I have to have the engine running to operate the hydraulics so I can get under her, so I dont want to take too much apart just in case I really have trouble in pumping the suspension back up again. All advice greatfully received PS I hate working under cars [/QUOTE]
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