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Old 19-03-2017   #16
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Re: Power steering failure - currently broken down

Quote Originally Posted by Paulski View Post
Hi, I have had the same problem for over 12 months now, at time power steering just stopped working and after several mile travelled came back on.
Beginnig of this year it stopped working again and this time is not coming back, I guess I will haveto give it a go at changing wiring loom to start with, I don't fancy replacing whole power steering pump because quotes are more than our beautiful Croma is worth now a days.
BrianCL, I suppes I can use Vectra's wiring loom for our car?
You have changed yours over a year ago, Has it been working good ever since?
Regards
Hi,
The Vectra C loom will work OK in a Croma but the pump won't. The embedded software is different between the Vauxhall and Fiat.

Robert G8RPI.
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Old 19-03-2017   #17
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Re: Power steering failure - currently broken down

I changed the power steering wiring loom for a vectra one and it hasn't missed a beat since.

When you see the two plugs together you'll see why the vectra ones last longer than the croma ones. My replacement cable had a rubber cover to go over the connector whereas the original croma one didn't. Before you buy anything take the plug off the unit and see if there's any black marks or scorching visible. If so you might be OK with a replacement cable.

Also, check the battery because a battery on the way out can cause the same problem.
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Old 21-03-2017   #18
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Re: Power steering failure - currently broken down

Thanks BrianMcl, I have got brand new battery in, and from early diagnostics by few mechanics I know that there was some burnt/scorching marks visible on connector plates, so I guess wiring loom replacement will be my first bet. You sure brought back some hope to me to get that sorted out. Thanks
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Old 24-03-2017   #19
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Re: Power steering failure - currently broken down

No problem - the power steering looms are relatively cheap and not difficult to fit. Good luck.
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Old 21-03-2018   #20
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Re: Power steering failure - currently broken down

I have the power steering problem. Took it to my garage and they found that the lead was corroded by the socket. They quoted 67 for the lead plus labour and vat. They also wanted to fit a new pump at around 500 plus labour and vat. (Fiat pump 800+).
I told them to try and repair the lead which they did by soldering however it lasted about 2 weeks and the steering has gone again. So I am going to try to find the lead myself and either attempt a repair or maybe get a Vectra one.
I can see from the thread the socket but where do the other ends of the lead connect to? Also where is the pump located? I read in one thread that it is attached to the bulkhead.
Hope someone can help as the Croma is stranded on my drive.
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Old 21-03-2018   #21
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Re: Power steering failure - currently broken down

Quote Originally Posted by Daveof49 View Post
I have the power steering problem. Took it to my garage and they found that the lead was corroded by the socket. They quoted 67 for the lead plus labour and vat. They also wanted to fit a new pump at around 500 plus labour and vat. (Fiat pump 800+).
I told them to try and repair the lead which they did by soldering however it lasted about 2 weeks and the steering has gone again. So I am going to try to find the lead myself and either attempt a repair or maybe get a Vectra one.
I can see from the thread the socket but where do the other ends of the lead connect to? Also where is the pump located? I read in one thread that it is attached to the bulkhead.
Hope someone can help as the Croma is stranded on my drive.
Hi,
Sorry to hear you are having problems. The pump is mounted low on the bulkhead behind the engine. Quite hard to see. pulling the fuel filter (assuming diesel) out of it's housing will give a better view. Removing the undertray will give access from below. Vectra leads are on ebay. Where hid the garage solder the lead? If they soldered direct to the pump pins a new lead may not fit.

Robert G8RPI.
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Old 21-03-2018   #22
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Re: Power steering failure - currently broken down

g8rpi .
Thanks for your input

The corroded wires were just as the cable entered the plug. Exactly what/
how they soldered wont be discovered until I get the cable out.
When the garage showed me the cable I seem to remember 3 cables entering the plug all of which had damaged insulation and corroded copper. So I am pretty sure this is the cause of the steering problem. I dont think they did anything to the pump itself.

I was thinking I could remove the pins and splice in some new wire after cutting off the damaged section or just buy a vectra cable which seem to be a lot cheaper than Fiats.

Do you know where the other end of the cable goes (fuse box?)
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Old 22-03-2018   #23
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Re: Power steering failure - currently broken down

Quote Originally Posted by Daveof49 View Post
g8rpi .
Thanks for your input

The corroded wires were just as the cable entered the plug. Exactly what/
how they soldered wont be discovered until I get the cable out.
When the garage showed me the cable I seem to remember 3 cables entering the plug all of which had damaged insulation and corroded copper. So I am pretty sure this is the cause of the steering problem. I dont think they did anything to the pump itself.

I was thinking I could remove the pins and splice in some new wire after cutting off the damaged section or just buy a vectra cable which seem to be a lot cheaper than Fiats.

Do you know where the other end of the cable goes (fuse box?)

Easiest to by a Vectra loom. I'm not 100% sure were the other end goes, I think it is the fused junction box on the battery. You could splice the end of the new loom onto the old but it can be hard to make a good joint on old cable. Moisture and corrosion products can wick up the stranded conductor a long way causing surface corrosion.
The Vectra pump is physically and electrically the same, it's just the built in software that stops us using them on Cromas.


Robert G8RPI.
Robert.
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Old 22-03-2018   #24
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Re: Power steering failure - currently broken down

g8rpi

When you refer to loom you do mean the power cable that plugs into the steering pump which from memory was about 200mm long when I saw it at the garage? (Although the pictures I have seen on EBay of the power cable do seem to be longer).

I think I will jack the car up on Saturday and see if I can remove the cable and take it from there.

Do you know if the actual pump is easy to remove or should I leave well alone?
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Old 22-03-2018   #25
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Re: Power steering failure - currently broken down

Quote Originally Posted by Daveof49 View Post
g8rpi

When you refer to loom you do mean the power cable that plugs into the steering pump which from memory was about 200mm long when I saw it at the garage? (Although the pictures I have seen on EBay of the power cable do seem to be longer).


I think I will jack the car up on Saturday and see if I can remove the cable and take it from there.

Do you know if the actual pump is easy to remove or should I leave well alone?
Yes, Loom = harness = cable.
I'd leave the pump in place if you can. Taking it out just risks leaks or damage to pipework.

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Old 23-03-2018   #26
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Re: Power steering failure - currently broken down

Thanks for that g8rpi.

If I manage to work on it this weekend (weather permitting) I will post any problems I come across- or not.
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Old 24-03-2018   #27
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Re: Power steering failure - currently broken down

Got the cable off and discovered the garage only taped the cables! Anyway, stripped the plug and soldered new cable to each of the three pins and spliced into the other side of each cable. Checked for continuity in each cable and refitted. Nothing doing, it was a complete waste of time so it has to be the pump.

So facing a bill of nearly 900 and seriously thinking of calling it a day with my Croma.

Anyone out there looking for a Croma Diesel 1.9 8v for spares.
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Old 24-03-2018   #28
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Re: Power steering failure - currently broken down

Quote Originally Posted by Daveof49 View Post
Got the cable off and discovered the garage only taped the cables! Anyway, stripped the plug and soldered new cable to each of the three pins and spliced into the other side of each cable. Checked for continuity in each cable and refitted. Nothing doing, it was a complete waste of time so it has to be the pump.

So facing a bill of nearly 900 and seriously thinking of calling it a day with my Croma.

Anyone out there looking for a Croma Diesel 1.9 8v for spares.
You can get a re-built pump for 275
https://www.ebay.co.uk/itm//112515456691
or used for 100
https://www.ebay.co.uk/itm/273121097169

Did you check the fuses?

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Old 26-03-2018   #29
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Re: Power steering failure - currently broken down

I have just realised that the cable I have just 'repaired' is not the power cable. The cable I repaired looks nothing like the cable on ebay when I searched for 'Idroguida Fiat Croma 51844351 originale Fiat'. This appears to have a rather thick red and black lead, so I don't know what cable I repaired was.It was 3 relatively thin wires red,green & black. The large plug plugged into the pump and the other smaller plug into the steering rack. I am now wondering how easy changing this power cable is to do as getting to the connectors is pig awkward and visibility is non existant unless you remove loads of bits in the engine bay.



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Old 26-03-2018   #30
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Re: Power steering failure - currently broken down

Sorry folks dont know what happened there but I copied and pasted an image. Can someone explain how to post an image in a reply!
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