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Matt
Matt, Mechanical Engineer
Category: Vauxhall
Satisfied Customers: 21614
Experience:  BEng hons Mech engineering, in auto industry 22 years
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Vauxhall Vivaro 1.9L [1870] Diesel Panel Van Manual 2005 I

Customer Question

Vauxhall Vivaro 1.9L [1870] Diesel Panel Van Manual 2005 I have had intermittent problems starting the van for about a year. would be fine and then, would turn the key and engine spin and cut out immediately with kind of spitting noise? Then it seemed to happen more when hot only recently to the point that it now will only start when luck prevails. will start easy with a push. looking at other forums it suggests the starter motor.
Any answers please
Dave
Submitted: 11 months ago.
Category: Vauxhall
Customer: replied 11 months ago.
my email address is***@******.***
Expert:  Matt replied 11 months ago.

Hello

if the engine is spinning / cranking OK then its not the starter motor

so I'd check that you're getting full power to the glow-plugs, they pull a lot of current so take care when checking but see if the relay is clicking when the ignition is turned on first and also check the fuse if this is OK check to see if the engine earth strap is also OK.

If the plugs haven't been changed in the last 20K then they may have to be replaced.

You can test the glow-plugs with a multimeter by measuring the resistance across the plug ( between the power connection and the body) it should be around 4-8ohms if its tending to infinity / open circuit the plug is faulty or by using a clip on current clamp, either on the supply wire to glow plugs or onto engine earth, with glow plug light on you should see 15-20amps for each glow plug fitted, 4 cylinders would be approximately 60-80amps.

Also if its not injecting at all then check the connections to the crankshaft sensor, unplug it and check for corroded contacts and broken wiring, and consider fitting a new sensor - do the same for the cam position sensor

If the EGR valve is stuck open then this too can effect starting so try disconnecting it to see if this helps or changes anything

Could also be an injector leaking fuel back through the overspill pipe, so not getting enough fuel pressure to tell ECU to fire the injectors, this is trickier to find and you’ll need the garage to do a ‘run back’ test to identify which one is the issue

Lastly it’s also worth considering fitting a new fuel filter as if only slightly blocked this can lower fuel supply pressure and choke the main pump, the pump will be more sensitive to this when its cold as diesel thickens considerably with low temperatures.

nsor wires, as they can get coated with dirt over time which then offsets the reading

Use some contact cleaner or brake cleaner to spray onto the wires to remove the dirt – on no account touch the wires with anything as they are very fragile

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