Looking for a Grand Cherokee, but do I get a V8, S6, or 3.1D
Looking for a Grand Cherokee, but do I get a V8, S6, or 3.1D
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Discussion

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
After loads of searching to decide on a 4x4, the ratty lifted up pickup truck idea went out the window with swmbo as she would need to drive it as well. I have been granted approval on a Grand Cherokee, but need some help to work out which one please. It will be at £2k budget for a 1999 - 2004 model (Limited, Overland, or 60th Ann spec).


Need to decide between 4.0 S6 petrol, 4.7 V8 petrol, or 3.1TD confused

Any advice from past owners on what to look for when buying would be much appreciated too smile



NB: MPG is not too important otherwise I would be looking for something less thirsty. I am covered by my business the first 25p per mile for petrol, or 18p per mile on LPG or Diesel.

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
Before anyone points this out...

I have seen this thread, which helps as a buyers guide, but doesn't help decide between the engines spin

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

2 Wycked

2,335 posts

256 months

Thursday 17th November 2011
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My Mum and Dad's next door neighbour has a 4.7 V8. On noise alone I'd probably choose that.

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
It's the noise that is tempting me most towards the V8 cloud9

Scouring the internet brings up suggestions the 4.0 S6 is more reliable, whilst the V8 can have piston wrist pin and rocker problems. I'm not sure how widespead this is though.

I'm not sure how these last/ perform with LPG either.

The Diesel is apparently quite agricultural, so it's bottom of the list currently.


Saddlebag

147 posts

189 months

Thursday 17th November 2011
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Just bought a V8. Top car.

I love it.

Used to have a 4.0 6, but was pretty gutless and always seemed like I was thrashing it. The V8 is VERY relaxed.

nicebutdim

37 posts

184 months

Thursday 17th November 2011
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had my 4.7 v8 for two years now its a very good lump, smooth as silk and not much difference in mpg to the 4.0 i had previous

RB Will

10,711 posts

265 months

Thursday 17th November 2011
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I spent years working for Jeep. the S6 is gutless in a GC the early diesel was rubbish but the latter one ok. Fuel economy still not great though. V8 (with LPG) is the one to go for. They are all pretty reliable. V8 is much nicer to drive and can actually get a move on if you want it to. with LPG the economy is similar to the diesel too

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
V8 is sounding more promising.

Like any 'cheap' car they can break down, but internet searching for problems sometimes makes them seem worse than they really are.

tr7v8

7,575 posts

253 months

Thursday 17th November 2011
quotequote all
Mine is a WJ with a I6, quick enough for day to day driving. One of my colleagues has a V8 & reckons on 1MPG different to the 4L. Worth coming over to www.jeepclub.co.uk which is the font of all knowledge for UK Jeepers.

Kevin VRs

13,705 posts

305 months

Thursday 17th November 2011
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I (well my wife) have a GC with the later 2.7TDi. Even this one is rather agricultural and returns around 28mpg. The earlier 3.1 is absolutely gutless and no better on fuel. 4.7V8 would be good but running costs will be quite high. LPG would improve things.

You mention 25p/mile and 10p mile. The government guideline is currently 45p/mile first 10,000 miles then 25p/mile. This also applies if you get a 'car allowance' as part of your remuneration package. Any shortfall from this guideline can be recovered as a tax allowable expense when you do your tax return which helps to offset the running costs.

Example - 5000 business miles, refunded 25p/mile by employer, can offset 5000 x 20p (45-25) = £1000 as a tax allowable expense thus getting a tax refund of between £200 and £400 dependent on your marginal tax rate.

jbi

12,698 posts

229 months

Thursday 17th November 2011
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4.0 is more reliable but not as powerful

my choice would be the 4.0 as it has legendary status in the USA

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
Kevin VRs said:
I (well my wife) have a GC with the later 2.7TDi. Even this one is rather agricultural and returns around 28mpg. The earlier 3.1 is absolutely gutless and no better on fuel. 4.7V8 would be good but running costs will be quite high. LPG would improve things.

You mention 25p/mile and 10p mile. The government guideline is currently 45p/mile first 10,000 miles then 25p/mile. This also applies if you get a 'car allowance' as part of your remuneration package. Any shortfall from this guideline can be recovered as a tax allowable expense when you do your tax return which helps to offset the running costs.

Example - 5000 business miles, refunded 25p/mile by employer, can offset 5000 x 20p (45-25) = £1000 as a tax allowable expense thus getting a tax refund of between £200 and £400 dependent on your marginal tax rate.
I looked into this with a tax accountant, but I was told that I could only claim the difference if I was self employed and contracting to them? I might just have another look, as I have 7 years of mileage expense claims that I could use as proof of miles covered and claimed at the lower rate

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
tr7v8 said:
Mine is a WJ with a I6, quick enough for day to day driving. One of my colleagues has a V8 & reckons on 1MPG different to the 4L. Worth coming over to www.jeepclub.co.uk which is the font of all knowledge for UK Jeepers.
Cheers, I've registered and awaiting approval smile

Looks like a great site thumbup

4plusone

8 posts

196 months

Thursday 17th November 2011
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On the tax thing my mum recently claimed back all the difference in her mileage between the company payment and the tax threshold. She got back about £7k if I remember right adn she's not contracting/self employed - field sales for the same compnay for the last 20+ years.

Might be worth looking into - I think just phoned up the tax office and asked them.

Good luck!

RS

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
I have found a few V8's without LPG which are well within budget, and even some with LPG.

There is a specific truck for sale locally which has an engine ticking noise, but is very cheap because of it. I'm trying to find out if it is a easy fix (lash adjuster, exhaust manifold studs broken, incorrect oil viscosity) OR a death sign (broken piston skirt, rattling wrist pin, bent rod).

scrwright

3,112 posts

215 months

Thursday 17th November 2011
quotequote all
don't get a diesel, the 3.1 is really bad, and the 2.7s are starting to show weaknesses with the injectors.

I am on the lookout for another for the wifey, I have an I-6 with 225,000 miles on the clock with no breakdowns, only servicing. I am steering toward another I-6 as the v8s don't seem to be as reliable (look on the US forums) apart from some porus head castings around 2000 (which should have been picked up by now) the I-6 is very reliable

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
kiwifraser said:
There is a specific truck for sale locally which has an engine ticking noise, but is very cheap because of it. I'm trying to find out if it is a easy fix (lash adjuster, exhaust manifold studs broken, incorrect oil viscosity) OR a death sign (broken piston skirt, rattling wrist pin, bent rod).
Searching the forums brings me to the conclusion it is typically one of 5 things - lash adjuster, exhaust manifold studs, incorrect oil, broken piston skirt, or rattling wrist pin.

The noise is evident up to 2000 rpm, when you cannot hear it over the engine noise. At first they thought it was under the inlet manifold, but listening from underneath it sounds as though it is more of an exhaust note.

It sometimes goes away when the engine is warm, but not all of the time.

I am going to look at it tomorrow, and am hoping someone who knows these could help me with what I should be looking for to work out where the noise is coming from? Any suggestions of forums I should ask for advice?
I'm hoping to work out if this is a diy/ easy repair job, or if it is the sign that a new engine needs to go in soon.


Viper

10,005 posts

298 months

Thursday 17th November 2011
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ive been running a V8 GC for about 9 years, no real problems

make sure you get heat from the heater, its a very well known problem on these vehicles

scrwright

3,112 posts

215 months

Thursday 17th November 2011
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look at www.wjjeeps.com very usefull, also tells how to run the diagnostics on the jeep & its heater (for the blend door issues)

kiwifraser

Original Poster:

4,386 posts

219 months

Thursday 17th November 2011
quotequote all
scrwright said:
look at www.wjjeeps.com very usefull, also tells how to run the diagnostics on the jeep & its heater (for the blend door issues)
What a great reference site! Reading OBD codes on the dash - inspired smile