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2.0 and 2.2 Dti Diesels all models no start

236K views 152 replies 59 participants last post by  andyl 
#1 ·
Hi first thing to check is the leak off pipes these are the small bore material covered pipes that run from each injector to the fuel pump
the new modified hose comes in a 1 meter length current part number 93181131 Cost £16.61 there is just enough to do all required so do not get overly generous just measure up with the pipe to be replaced - if you have difficulty getting this pipe it is available from Greasemonkeys Garage for cost plus postage just email him for further info
cheers
Steve (Greasemonkey)
 
Discussion starter · #3 ·
yes leak off , spill , fuel return , small black pipes etc all do the same job - return unused fuel to the fuel pump under low pressure to be repressurised and resent to the injector to be injected into the engine through the injectors- when these pipes perish they allow air to enter the low pressure diesel system which in turn enters the high pressure system - if theres air and no diesel a diesel engine cannot run and you get either the non start or the poor start - but without the white sweet smelling smoke - this is unburnt diesel and points to poor glow plugs or poor compression rather than lack of diesel
regards
Steve
 
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Discussion starter · #19 ·
if the issue is when parked facing uphill then chances are that you have a leak in the fuel feed line. this lets in air and allows fuel to drain back to tank.
Sorry to say in most cases the fault of fuel draining back is due to the leak off pipes letting in air - because the fuel system is a vacumn one rather than a pumped one this causes the fuel to run back down the entire system - eventually damaging the pump if left unrepaired
regards
Steve
 
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Discussion starter · #43 ·
The ecu doesn't just get the info for the cold start from the coolant temp sensor it also uses the oil temp sensor and the air temp sensor
regards
steve
 
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