V8 4.4 starting problems

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S

samp5679

New Member
Posts
24
Location
tyne and wear
Hi guys
I have a 2004 RR 4.4 v8 LPG its has an intermittent start up fault.
sometimes it will fire straight up and other times it will take up to 10 seconds to fire
any ideas or anyone had this problem ??? relay ??? fuel pump??? return valve???

cheers
simon
 
hi, have the M.A.F. checked 1st either put it on diagnostics or if you know anyone with same engine see if you can put his on yours then try starting it if its running fine then you've got the answer !!!!!! then clean yours very gently on the very thin sensor strands using cotton wools buds dipped in meths or nail varnish remover !!!! then either air dry it before re-fitting ,,, the whole procedure takes about 10 mins and worked for me so its a cheap fix ,, then sensors do get clogged up with the ****ty petrol and gas that is abundant in certain areas ,, P.S. the nail varnish is my wifes honest ????????:D:D ha ha anyway let us know how you get on ,and to the others it is possible to start straight onto gas its happened to me a few times till it was rectified by a full lpg service and new vapourisor ,,besr regards MOZZ:crazy_driver::crazy_driver::crazy_driver:
 
mozz smith said:
hi, have the M.A.F. checked 1st either put it on diagnostics or if you know anyone with same engine see if you can put his on yours then try starting it if its running fine then you've got the answer !!!!!! then clean yours very gently on the very thin sensor strands using cotton wools buds dipped in meths or nail varnish remover !!!! then either air dry it before re-fitting ,,, the whole procedure takes about 10 mins and worked for me so its a cheap fix ,, then sensors do get clogged up with the ****ty petrol and gas that is abundant in certain areas ,, P.S. the nail varnish is my wifes honest ????????:D:D ha ha anyway let us know how you get on ,and to the others it is possible to start straight onto gas its happened to me a few times till it was rectified by a full lpg service and new vapourisor ,,besr regards MOZZ:crazy_driver::crazy_driver::crazy_driver:
Click to expand...
Cheers MOZZ iam offshore 2 more weeks but I will get straight on it when I return home ,,,strange problem must be common as my old man had same problem with his 4.4LPG vogue

simon
 
A £17 Ebay MAF didn't solve the issue???

Are you sure it is a good one, decent, of OEM build or of OEM quality....as Datatek says Cheap MAF's rarely last/work/give good results....

Have you checked fuel pressure...it could be fuel pump or regulator causing issues...or even a dodgy ECU Temp Sensor giving false info to the ECU which in turn is giving duff fueling information....

As I say the only two issues I have had (so far) are duff fuel pump causing no start....and also when the water pump went south causing an ECU to think the engine temp was either to hot or too cold meaning it struggled to start...(luckily it wasn't overheating sa I had only had the engine running for 2 minutes when it went pearshaped!)
 
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