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vehicle vibrating

Tech Talk for Mitsubishi owners.

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vehicle vibrating

Post by terratest »

I have a 97 3.5 V6 DOHC love my baby has taken 14 tears to get it when idling there is no problem but when driving vehicle vibrates like hell please can anybody give me any ideas as to what the problem may be
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Re: vehicle vibrating

Post by bakerboy »

terratest wrote:I have a 97 3.5 V6 DOHC love my baby has taken 14 tears to get it when idling there is no problem but when driving vehicle vibrates like hell please can anybody give me any ideas as to what the problem may be
where abouts are the vibes coming from? steering wheel? can you feel it in the seat?
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Post by date »

If the vibration is related to engine speed, it could be a cylinder misfiring. If so, it could be spark or fuel. If you have access to someone with an ignition analyser, they could look at the voltage profiles and tell you for sure. Otherwise if it is fuel, it is a bit harder to diagnose.

You may be able to use your radio and tune it off station and turn the volume up high. See if there is static and if the static increases when it is vibrating. If so, it is almost certainly electrical. You may have to replace your high tension leads and spark plugs.

Being a DOHC engine is could eve be valves, but I think you would hear some clattering from the engine then.
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Post by terratest »

date wrote:If the vibration is related to engine speed, it could be a cylinder misfiring. If so, it could be spark or fuel. If you have access to someone with an ignition analyser, they could look at the voltage profiles and tell you for sure. Otherwise if it is fuel, it is a bit harder to diagnose.

You may be able to use your radio and tune it off station and turn the volume up high. See if there is static and if the static increases when it is vibrating. If so, it is almost certainly electrical. You may have to replace your high tension leads and spark plugs.

Being a DOHC engine is could eve be valves, but I think you would hear some clattering from the engine then.
Thank you for the advice hope to have my baby running smooth again she has 240 000 km on the clock
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Post by NJV6 »

terrratest, You still haven't said what sort of vibration it is......
1994 NJ SWB, 3.5, 5 speed manual, 33's, XD9000, 4.9 diffs, Front & Rear ARB's, Safari Snorkel

2008-2009-2010-2011 Pavlova in the shed.
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Post by terratest »

NJV6 wrote:terrratest, You still haven't said what sort of vibration it is......
feel it in the seat
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Post by NJV6 »

If it vibrates like hell I'd say take it to a specialist

have a good lok underneath that everything is tight, check all your tyres, get them balanced, check gearbox and engine mounts, universal joints in driveshafts for movement.
1994 NJ SWB, 3.5, 5 speed manual, 33's, XD9000, 4.9 diffs, Front & Rear ARB's, Safari Snorkel

2008-2009-2010-2011 Pavlova in the shed.
Posts: 4
Joined: Tue Mar 09, 2010 5:20 am
Location: Brits

Post by terratest »

NJV6 wrote:If it vibrates like hell I'd say take it to a specialist

have a good lok underneath that everything is tight, check all your tyres, get them balanced, check gearbox and engine mounts, universal joints in driveshafts for movement.
The vibrating appears to have been the waterpump packing up it gave up the ghost today
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