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Thread: Loud noise when starting car

  
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    Loud noise when starting car

    Hi, I drive a 2001 Astra 1.6 8v and get a loud noise coming the engine when I start it up. (sounds weird, like im driving over rumble strips or on a flat tyre)There used to be a faint noise and was told by Vauxhall that it's the water pump and it needs replacing. This noise is MUCH louder and happened after I was stationary a few days ago, Pressed the aircon button and the car cut out. I started it back up OK and drove it home fine but once I was ready to go out again, the noise appeared. I haven't driven it since 'cause the noise is that loud and embarrasing.I also have an issue with my heaters sounding like they are working but the heat coming out is a joke.Do you think they are all linked or do you have any other ideas?

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    How is the temp guage on the car, heating up alright?

    Switching the AC on and having the car stall points towards a siezed compressor but can't think of what noise would be there all the time

    Any idea what side of the engine bay it comes from?
    Want a professional job done on fitting your aftermarket electrical accessories? PM me for a quote
    Electrical fault finding also taken on
    Located in N/W London HA3, and willing to travel within reason





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    Thanks for getting back to me. The temp gauge stays on 0 for ages then I'll look later on (about 30mins or so) and it will be halfway. The noise appears to be coming from the left side of the engine.

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    Temp guage will probably be the thermostate then stuck open unless of course the water pump is now that knackered it's not pumping as it should

    Seeing as the water pump is usually driven by the cambelt i'd get it looked at asap incase the belt is flapping around

    AC compressor is also in that location
    Want a professional job done on fitting your aftermarket electrical accessories? PM me for a quote
    Electrical fault finding also taken on
    Located in N/W London HA3, and willing to travel within reason





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    Thanks, Have ordered a new water pump and timing belt online so should be a few days before I get them. For the Seized compressor and thermostate stuck open, would that be new ones that's needed? My mechanic friend lives around 6 miles from me, would it be safe to drive the car to his house with it making that noise? The belt 'seems' to be going round like normal when I took a look but I dont know much about cars.

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    It would mean new items on both yes

    Do the thermostate at the same time as the water pump to save loosing water twice
    Want a professional job done on fitting your aftermarket electrical accessories? PM me for a quote
    Electrical fault finding also taken on
    Located in N/W London HA3, and willing to travel within reason





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    Thanks once again :-) Would this be the thermstat I require?

    http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=350111488190

    It says for Astra G engines: <X16SZR>, <Z16SE>. But, apparantly I have an engine <Z16XE>. Is there a difference between the 'S' and the 'X'?

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    Found out the differences. The 'S' is 8v and the 'X' is 16v. I'll get all these checked out and will let you know how I get on. Happy new year!

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    Just thought I'd give an update on this: Got back my car from a 'mobile mechanic' yesterday and he changed the water pump, thermostat, air-con compressor and put a new timing belt kit on there.

    It is much quieter than it was before and the temp gauge gradually moves, rather than shooting straight up. However, the heater still sounds like it's blowing loads of heat out but the actual heat coming through is minimal. I will remove the pollen filter and see if that helps.

    The car/spanner light is still on and it shows up as p1122 and p1550 (I think). The mechanic told me to change the gas pedal ASAP and not to drive around too long with the light on. Does anyone know much these cost approx as the guy didnt know and if that will also eliminate the p1550 error code?

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    P1122 is accelerator position sensor
    P1550 spans:

    P1550 Electronic Throttle Control Reduced Power C-09
    P1550 Electronic Throttle Control Forced Idle C-09
    P1550 Electronic Throttle Control Power Management C-09
    P1550 Electronic Throttle Control Engine Stop C-09

    They may all be related to a dodgy throttle pedal and sensor - but no idea exactly nor on the cost I'm afraid!

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