Advice please

Deastons

DoaM wrote: »

What does "jumping a cog" mean? What cog, where?

I would imagine that if the OP knew details like that, they would need to have taken it to a garage to be diagnosed.

neilmcl

You need to back to the garage and ask them to explain exactly what is wrong with the car and what diagnosis did they do that warrants a £300 charge?

jeanie49

The main problem is the car isn't running at all now, and they want £300 when they've made the problem worse

ratrace

jeanie49 wrote: »

not sure. Its been in since last week.

Its not hard all i would have done is assuming its a petrol car

check plugs and coils (swap coils to anaother cylinder to see if problem swaps to another cylinder) if all ok then i would have done a quick compressin test and see if any of the cylinders are down on compression if all ok, them i would have backprobed and scoped using a pico the cam and the crack sensors and count the number of teeth between each full 360 degrees of the engine turning and compare it to a known good, that then would tell me if the timing was out and by how much etc...


so like i say they dont seem to know what they are doing, ive spent 3 yeras in college studying all this and still learning everyday

neilmcl

jeanie49 wrote: »

The main problem is the car isn't running at all now, and they want £300 when they've made the problem worse

Just because they haven't been able to fix it doesn't mean they've made the problem worse. Sounds like it was never a misfire in the first place but a problem with the timing chain, which is now completely knackered and may have caused major problems with your engine.

foxy-stoat

Scrap it and buy another - not from an auction.

DoaM

Deastons wrote: »

I would imagine that if the OP knew details like that, they wouldn't need to have taken it to a garage to be diagnosed.

You were saying?

jeanie49 wrote: »

Timing chain jumped a cog and they said will need a new engine.

Oops.

macman

OP, how about giving us some proper context, instead of drip-feeding info? Which model of Jag, which engine? Year, mileage? Purchase price? Any service history? What sort of garage: franchise, independent?
If they can get you a 'new engine' for £1000, then you'll be well ahead! But I suspect that if your 'misfire' relates to the timing chain, then you've bought a very expensive piece of scrap.