360 GLT jerking under acceleration

Jan 9th, 2007, 22:12

The car starts fine but when you put any load on the engine it shudders and jerks as if only half the cylinders are working. Finally it picks up as if a turbo's cut in! This happens in any gear now, although initially it was only in fourth or fifth at lowish speeds.

Velorum · Jan 9th, 2007, 22:15

Ignition problem perhaps? How recently were the HT/Coil leads, Distributer cap and rota arm changed?

Jan 10th, 2007, 22:47

I'm afraid I haven't the foggiest. Certainly not recently.

pettaw · Jan 11th, 2007, 17:50

Sounds like it needs a good service, give the tank a good dose of injector clean, and get some fresh plugs, HT leads and dizzy cap and rotor on.

Once that's done, and the fuelling's been tuned, then take the car for a good long run not being afraid to rev the car up to help clear out any deposits.

foggyjames · Jan 14th, 2007, 01:00

Totally agreed with these guys - give it a full service including ignition 'consumables', then go for an italian tune-up (once it has warmed up, of course).

cheers

James

petefarrell360 · Jan 15th, 2007, 23:32

Definitely agreed with the knowledgable chaps above, they know their stuff! I had a dodgy HT lead on mine, which on a hard right hand bend to work showed itself as being a problem, had a poke about and it was practically in two.

Also if it's been low on fuel and picked up rubbish from the bottom of the tank, that can cause some juddering....... been there before! Being the GLT there is the fuel filter under the bonnet, and also one by the fuel pump, located on a tray under the car. Worth doing as a service item.

If it's actually running lowish on fuel, the 360 has a saddle tank that is in two halves over the rear axle of the car, and the gauges can be a bit over optimistic sometimes, and on hard acceleration, even if it looks like there's plenty in there, it can start to suck some air, resulting in some hestitation and juddering! I try to never let fuel tanks get very low at all, for both these reasons!

HTH's,
Pete

Jan 9th, 2007, 22:12	#1
Anderoo2 Guest Location:	360 GLT jerking under acceleration The car starts fine but when you put any load on the engine it shudders and jerks as if only half the cylinders are working. Finally it picks up as if a turbo's cut in! This happens in any gear now, although initially it was only in fourth or fifth at lowish speeds.

Jan 9th, 2007, 22:15	#2
Velorum VOC Member Last Online: Apr 17th, 2023 20:49 Join Date: Dec 2004 Location: Newquay	Ignition problem perhaps? How recently were the HT/Coil leads, Distributer cap and rota arm changed? __________________ Past Volvos 340's (2), 240 saloons (4), 240 estates (5), 740 estate (1), 760 saloon (1), 940 saloon (1), 940 estate (1)

Jan 10th, 2007, 22:47	#3
Anderoo2 Guest Location:	I'm afraid I haven't the foggiest. Certainly not recently.

Jan 11th, 2007, 17:50	#4
pettaw Forum Support Team Last Online: May 28th, 2024 10:43 Join Date: Jan 1970 Location: Glasgow, London	Sounds like it needs a good service, give the tank a good dose of injector clean, and get some fresh plugs, HT leads and dizzy cap and rotor on. Once that's done, and the fuelling's been tuned, then take the car for a good long run not being afraid to rev the car up to help clear out any deposits.

Jan 14th, 2007, 01:00	#5
foggyjames 300 Register Keeper Last Online: May 29th, 2024 11:43 Join Date: Dec 2001 Location: Nottingham	Totally agreed with these guys - give it a full service including ignition 'consumables', then go for an italian tune-up (once it has warmed up, of course). cheers James

Jan 15th, 2007, 23:32	#6
petefarrell360 New Member Last Online: Sep 14th, 2019 04:10 Join Date: Oct 2004 Location: Aylesbury	Definitely agreed with the knowledgable chaps above, they know their stuff! I had a dodgy HT lead on mine, which on a hard right hand bend to work showed itself as being a problem, had a poke about and it was practically in two. Also if it's been low on fuel and picked up rubbish from the bottom of the tank, that can cause some juddering....... been there before! Being the GLT there is the fuel filter under the bonnet, and also one by the fuel pump, located on a tray under the car. Worth doing as a service item. If it's actually running lowish on fuel, the 360 has a saddle tank that is in two halves over the rear axle of the car, and the gauges can be a bit over optimistic sometimes, and on hard acceleration, even if it looks like there's plenty in there, it can start to suck some air, resulting in some hestitation and juddering! I try to never let fuel tanks get very low at all, for both these reasons! HTH's, Pete

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