URGENT HELP! |
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540 V8
Bavarian-Board Contributor Lick my badge Joined: 07-December-2005 Location: Running the asylum Status: Offline Points: 2280 |
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Posted: 07-February-2007 at 12:11 |
I have an e34 540 V8 (M60 engine) I fitted a thermostat to it yesterday. All ok, wife used it for work, everything fine. This morning it turned over, fired then died. I have tried it again and again and still the same. It was showing 30 miles left on the OBC of fuel so just in case I put 15 litres in, still nothing. It sounds to me like fuel starvation as the battery is perfect. The crank sensor did have a large quantity of coolant leak onto it and I have to disconnect the MAF lead to get to the thermostat, but apart from that, I can't think of anything else I've disturbed. Please help!! Mike |
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Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto Previous:E34 530iSE AC Schnitzer suspension. E28 525e auto-Standard |
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studyolic
Really Senior Member I Joined: 09-July-2004 Location: Inchture, Dundee, Scotland. Status: Offline Points: 427 |
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Have you tried leaving the MAF unplugged? A bad MAF can make the
engine die; an unplugged MAF will allow it to run, just not terribly efficiently. Otherwise, I can only think of the fuel pressure regulator off the top of my head. |
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Richard.
Current; 2000 316i Compact 1.9 previous; 1999 535i V8, 1995 316i Compact 1.6 |
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540 V8
Bavarian-Board Contributor Lick my badge Joined: 07-December-2005 Location: Running the asylum Status: Offline Points: 2280 |
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Cheers for the quick reply, yes I did try the MAF unplugged, no change! Any ideas where I find the fuel pressure regulator and how to test it!?? Mike Mike |
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Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto Previous:E34 530iSE AC Schnitzer suspension. E28 525e auto-Standard |
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BeemaBoy
Really Senior Member II Starting a Collection Joined: 25-October-2004 Location: Johannesburg, South Africa Status: Offline Points: 927 |
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Have you tried unplugging the crank sensor and checking if there is any coolant in the connection plug? Could be causing a dodgy connection? BB |
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87 E30 320I
95 E34 525I Auto, Executive Package, Arctic Silver 98 E38 740I Steptronic, Silver |
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studyolic
Really Senior Member I Joined: 09-July-2004 Location: Inchture, Dundee, Scotland. Status: Offline Points: 427 |
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Mike,
have a look at the last post on the thread "pressure Regulator Valve " by Exharper. |
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Richard.
Current; 2000 316i Compact 1.9 previous; 1999 535i V8, 1995 316i Compact 1.6 |
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Exharper
Really Senior Member I Dont let the misses drive it!! Joined: 19-January-2005 Location: Sawley, Long Eaton Status: Offline Points: 444 |
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Are sure it is not flooded as this sounds very familiar to what i did ages ago. Was the car moved and switched off for a short while. Try and pull the fuel pump fuse out and then turn the key, it may spit for a while depending on how bad it is and how much you have all ready turned it over...... Dont worry anyway as all the roads will be closed by 8 am as the uk would have more than 2 cm of snow |
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Beemer dan 523i SE 1997 (184K) Canyon Rot Red, auto. 330 CI Msport Convertible, blue 51K.
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540 V8
Bavarian-Board Contributor Lick my badge Joined: 07-December-2005 Location: Running the asylum Status: Offline Points: 2280 |
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LOL@ exharper! yes but I still have works van to try and drive! I'm about to battle minus 1 now and try a few things. Wish me luck! I'll report my findings.
Mike |
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Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto Previous:E34 530iSE AC Schnitzer suspension. E28 525e auto-Standard |
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Exharper
Really Senior Member I Dont let the misses drive it!! Joined: 19-January-2005 Location: Sawley, Long Eaton Status: Offline Points: 444 |
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It m ay not be flooded but if it has been turned over loads then the spark plugs are going to have to come out and dried off with a little oil poured down the holes. and then do the fuel pump fuse malrky, when the car is spluttering then push the fuse in with the other hand. Was it moved or started and then stoped, if not then its probably not this but i did this ages ago to the let the misses out and the RAC sorted and show me how to do it. Good luck...... I have to travel an hour to work so hopeing for a "cant get to work" moment in the morning!!!!!!!!!!!!!! |
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Beemer dan 523i SE 1997 (184K) Canyon Rot Red, auto. 330 CI Msport Convertible, blue 51K.
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fingerman
Really Senior Member II Joined: 31-May-2005 Location: Stockport Status: Offline Points: 564 |
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Please report your findings on this as my e39 was doing the exact same thing - I checked the maf, cleaned the other bits near to this - even put a Wynnes injector stuff after I filled it up (waste of a fiver)
Sold the car over the weekend (few) - but told the dude about the fault. If you revved the engine it seemed fine, it you revved it slightly/quick it would then go lumpy and cut out! BTW - I'm driving to glasgow tomorrow, 230 miles - should be interesting |
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Current: E34 1996 525tds 113-125k
Previous: 9xE34s, 5xE30s, 2xE39s, 1xE32, 1xE36.... phew! My Ebay bits: http://search.ebay.co.uk/_W0QQsassZseany69ukQQhtZ-1 |
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540 V8
Bavarian-Board Contributor Lick my badge Joined: 07-December-2005 Location: Running the asylum Status: Offline Points: 2280 |
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Have you ever had one of those moments where you can't see the wood for the trees? I thought about fuel pump failure, the crank sensor getting soaked, loose wires or pipes I may have knocked when changing my thermostat etc. Printing off all the checks I should perform from my TIS CD. Then I got home, got it all sorted in my head in the order I should check everything. My first port of call was to remove the fuel pump fuse i and crank the engine so I could drain the engine of excess fual that may have caused flooding. I located the fuse and hey presto, the damn thing had blown! Good news I had found the fault, but what caused the fuse to blow? The fuse was one of the old style ones where instead of looking through the see through plastic, it was solid in colour and had the wire exposed across the top so I figured it may have been the original fuse and under the stress of 13 years of engine vibrations and constant hot/cold conditions it may have just been weak and therefore unable to carry the amps. With fingers crossed, I replaced the fuse and cranked the engine and straight away it started. I took her up the road for a quick blast up the dual carraigeway (mainly to re-charge the battery after all that cranking) and not a problem. I can only assume my theory of it being an old and worn fuse was correct. After my recent thermostat and fuse problem, all seems well again and I can now do lots of this>>
Mike |
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Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto Previous:E34 530iSE AC Schnitzer suspension. E28 525e auto-Standard |
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Exharper
Really Senior Member I Dont let the misses drive it!! Joined: 19-January-2005 Location: Sawley, Long Eaton Status: Offline Points: 444 |
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You have reason to smile, it cost nothing but a fuse!!!!!!! and now you can do donuts in the snow tomorrow..........cant wait!!! |
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Beemer dan 523i SE 1997 (184K) Canyon Rot Red, auto. 330 CI Msport Convertible, blue 51K.
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540 V8
Bavarian-Board Contributor Lick my badge Joined: 07-December-2005 Location: Running the asylum Status: Offline Points: 2280 |
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*in the voice of homer simpson* "mmmmm, dohnuts!" Mike |
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Current:E34 540i Touring 6 speed manual(Mpower bodykit & suspension)& Chrysler Voyager 3.3 V6 auto Previous:E34 530iSE AC Schnitzer suspension. E28 525e auto-Standard |
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studyolic
Really Senior Member I Joined: 09-July-2004 Location: Inchture, Dundee, Scotland. Status: Offline Points: 427 |
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good news, Mike.
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Richard.
Current; 2000 316i Compact 1.9 previous; 1999 535i V8, 1995 316i Compact 1.6 |
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thepits
Moderator Group Joined: 09-July-2003 Location: far far away Status: Offline Points: 10000473 |
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...with a nail |
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Cats know your every thought.
But don't care. |
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Exharper
Really Senior Member I Dont let the misses drive it!! Joined: 19-January-2005 Location: Sawley, Long Eaton Status: Offline Points: 444 |
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You like your nails!!!!!!!!!! perhaps we should start a bmw survival kit to insert in to the tool box in the boot. A nice set of B&Q assorted nails, all different lenghts and thickness. This should ensure we have the ultimate driving experience. As long as they dont get in the tyres |
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Beemer dan 523i SE 1997 (184K) Canyon Rot Red, auto. 330 CI Msport Convertible, blue 51K.
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thepits
Moderator Group Joined: 09-July-2003 Location: far far away Status: Offline Points: 10000473 |
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If we all keep them in the toolbox in the boot then they wouldn't get in our tyres You need to grade them by length, thickness, and resistance Ideal for any event - never be immobile at the side of the road again.
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Cats know your every thought.
But don't care. |
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Exharper
Really Senior Member I Dont let the misses drive it!! Joined: 19-January-2005 Location: Sawley, Long Eaton Status: Offline Points: 444 |
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they may in the spare tyre, maybe handy for road rage incidents too. Not that i recommend such actions of course.... |
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Beemer dan 523i SE 1997 (184K) Canyon Rot Red, auto. 330 CI Msport Convertible, blue 51K.
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IamSpartacus
Moderator Group Joined: 21-November-2002 Location: Singapore Status: Offline Points: 3625 |
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Glad to hear you got it sorted Mike. time to check the others as well while you're at it non?
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The world is a tragedy to those who feel, but a comedy to those who think.
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fingerman
Really Senior Member II Joined: 31-May-2005 Location: Stockport Status: Offline Points: 564 |
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Glad you got it sorted - thanks for keeping us update
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Current: E34 1996 525tds 113-125k
Previous: 9xE34s, 5xE30s, 2xE39s, 1xE32, 1xE36.... phew! My Ebay bits: http://search.ebay.co.uk/_W0QQsassZseany69ukQQhtZ-1 |
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RedOctober
Really Senior Member I Joined: 19-April-2005 Location: Wirral Status: Offline Points: 279 |
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I've had a few problems with some of the original BMW fuses. The fuel pump fuse in my E34 525i became intermittent, and in my E34 540i the heated rear screen fuse under the rear seat just melted. Seems they are manufactured by crimping the main connectors over a piece of fuse wire. Over the years the point of contact between the fuse wire and crimp connect ages, corrodes, and becomes intermittent/high resistance, as they are fully exposed to air. New fuses of a 1-piece design seem to cure this. Sudden starting problems almost always seem to be electrical in nature and BMW's, being stuffed full of electronics, suffer many electrical 'glitches' in later life. A great many of these are simple 'connection' faults-dirt, corrosion etc. Relays glaze over their contacts, causing all kinds of intermittent mayhem and engines cutting out for no reason. In many cases the cure is cheap and simple-it's the time expended to track the damned faults down that costs in labour, especially the intermittent faults. Over the years I've had intermittent relays causing engine cut-outs, intermittent central locking due to corrosion in the door electrical plugs, failing lights due to light corrosion on the bulb holders, intermittent fuses, failed solder joints on ECU's, instrument clusters-the list goes on! In virtually all of the cases, a good clean-up of electrical contacts works wonders, followed by a very gentle brushing of external contacts with grease and a small modellers paintbrush to ward off corrosion. I repaired failed ECU's and instrument clusters by opening them up and just having a very close look at the circuit cards, before re-making suspect joints with a soldering iron. |
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"I was just clearing out the cylinders, Officer"
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