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Discussion Starter · #1 ·
For a few weeks my 2008 1.9CDTi has been struggling to start when cold. What happens is that it turns over pretty healthily but doesn't fire up until about 10 to 20 seconds. Once the car has been running,it starts fine for the rest of the day.I put it in for a service and they checked the glow plugs etc and suggested I take the car to a fuel injector specialist as they thought the problem was an injector back leak. So, the fuel injector specialists I took it to last Wednesday have tried various parts, a fuel pressure regulator, a crank pully? and various sensors. They have checked all the injectors, and the fuel pump etc but cannot find any faults so the car is still the same. And they have charged me for one of the parts and 4 hours labour and the car is exactly as it was before. Can any body advise me on anything else it could be? I spoke to a guy in work who had a similar problem with a Vectra and he thinks it was a cracked Diesel Filter Housing. Any suggestions from anyone who has successfully fixed this problem would be appreciated.Thanks,****
 

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Hi there ****... First off you need to see if there are any error codes in the ECU memory. Hook it up to a diagnostic unit, like Tech2 or OpCom, or do the "pedal trick" and see what comes up on the dash readout. I would suspect glowplugs....
Cheers... Robin
 

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Discussion Starter · #3 ·
Thanks Robin, The guys in the garage hooked it up to their diagnostic unit and the error was something to do with fuel pressure either being too high, or not high enough.They fitted a pressure regulator valve which made no difference.Whatever they did, they ruled out the glow plugs right away, as this was my first thought.They have checked full fuel system and satisfied it is all OK. So they have thrown the towel in.
 

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Try doing the "pedal test" yourself and post up the numericcode on here for the experts to see. Sometimes certain codes can actually mean something else is the root cause of the problem.The other possibility is that you have water in the fuel filter bowl or sediment in the fuel tank. Both these can lead to difficult starting...Cheers... Robin
 

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Discussion Starter · #5 ·
Hi Robin, sorry I've not got back to you yet. First of all the pedal test doesn't seem to work on my zafira??

Anyway, for anyone else who has this problem in the future, my car is now fixed.

I found a post on another site from a Vecrta 1.9cdti owner with the exact symptoms as mine and the same diagnosis from all mechanics he had spoken to.... Problem with fuel system, either back leaks or pressure too high, too low. Anyway it turned out he replaced both his starter motor and his battery and his car started like new. So I thought I'd try the cheapest one first an bought a Bosch battery today, put it in and bingo!!! Car starts like a new car. The original battery was showing close to 13 volts so looked healthy enough. And starter was turning over pretty rapidly but not sparking up. So if anyone else has cold start issues as I describe in my original post, try the battery before you spend hundreds of pounds getting your entire fuel injection system stripped down only to find its fine.

Just wish I'd tried this first. Thanks to Robin for your replies and hopefully someone will read this at some point and save a few quid and a load of hassle.

Cheers
**** :)
 

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Hi Robin, sorry I've not got back to you yet. First of all the pedal test doesn't seem to work on my zafira??

Anyway, for anyone else who has this problem in the future, my car is now fixed.

I found a post on another site from a Vecrta 1.9cdti owner with the exact symptoms as mine and the same diagnosis from all mechanics he had spoken to.... Problem with fuel system, either back leaks or pressure too high, too low. Anyway it turned out he replaced both his starter motor and his battery and his car started like new. So I thought I'd try the cheapest one first an bought a Bosch battery today, put it in and bingo!!! Car starts like a new car. The original battery was showing close to 13 volts so looked healthy enough. And starter was turning over pretty rapidly but not sparking up. So if anyone else has cold start issues as I describe in my original post, try the battery before you spend hundreds of pounds getting your entire fuel injection system stripped down only to find its fine.

Just wish I'd tried this first. Thanks to Robin for your replies and hopefully someone will read this at some point and save a few quid and a load of hassle.

Cheers
**** :)
massive help! I was sorting a car for a customer, wanted a 7 seater for £500 of course 🤦‍♂️Had issue cold start, would crank for 15 seconds before firing. Battery is knackered so off to get a new one now. Hopefully this works. Glad I saw this before investigating fuelling issues. Thanks! Will post to see if that does the trick.
 
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