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97 Isuzu Trooper loud ticking in the top end,

97 Isuzu Trooper loud ticking top end, mechanic told me it is a overhead valve engine and the cams and rocker assembly needs to be replaced as they are severly worn. Cost many thousands of $$$ Whats the deal, lifters or OHV? I just put AMSOIL 10-30 healped a little, but now when engine warm I have little or no oil pressure at idle. I live in cold Colorado

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  • Eric Feb 25, 2012

    So replace the rocker arms or the whole rocker assembly, tube and all?
    Sounds reasonable- no pun intended.

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Ist probably your rocker arms they are located underneath the valvue cover

Posted on Feb 24, 2012

  • Layne Johnson
    Layne Johnson Feb 26, 2012

    yea replace the rockers the whole rocker assembly and that should do the trick

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It has rocker arms, with something called hydrologic lash adjusters that push the valves. replace all the ones with collapsed "buttons", and change your timing belt hydrolic tensioner, they make alot of noise when they go out.

Posted on Apr 17, 2012

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2006 cts 2.8 making loud ticking noise ,running rough and has misfire codes po300,301,303,305


codes p 300 is a random/ multiple misfire===causes spark plugs---HT leads ---injectors/s--ignition coil/s--low compression---wiring
codes p 301,303,305 are misfires detected for no 1,3 5 cylinders === causes listed are engine mechanical fault---wiring---ignition/fuel systems ---injectors---ECT/MAF sensors---ECM
You do not mention if this is a v6 engine in which case no 1,3 5 will be all in the one bank head
With the loud ticking noise that amounts to a mechanical fault associated with that bank
could be loose valve seat inserts , cam lobes failure or cam follower failure or hydraulic lifters problem even loose cam shaft bearings / caps
I would be inclined to remove the rocker cover and check for metal , loose bolts , excessive valve clearance before I went plugs etc
the main indicator for the answer is the loud ticking noise which indicates a valve train problem which will cause the rough running

Jan 15, 2016 | Cars & Trucks

1 Answer

Top of the engine is ticking. friend told me it could be a valve that is clogged or stuck open and thats its not a huge problem but it might be mixing gas and oil. to me that sounds like a problme....


It sounds like hydraulic lifter noise. The lifters open and shut the valves and can be helped by using a good synthetic oil and frequent oil changes. Lash is the clearance between the valves and lifters.

Mar 22, 2011 | 1993 Isuzu Trooper

1 Answer

How do i know if my 1995 isuzu trooper is a single cam or dual cam?


on the top of your camshaft cover it will say dohc dual overhead cam 2 or ovh over head cam 1 cam also if cam cover is small usually is single if real wide is double

Sep 24, 2010 | 1995 Isuzu Trooper

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Specification of 4JG2 Engine-Isuzu


Four cylinder inline, water cooled, overhead valve diesel engine with dry liners available in Turbo(T) or normally aspirated(NA).
Bore 95.4mm
Stroke 107
Displacement 3.059 litre
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Firing order 1-3-4-2
Injection timing NA: 1 deg after top dead centre(ATDC), at top dead centre(TDC) for turbo
Valve clearance (cold): 0.4mm for intake and exhaust.

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1 Answer

I had the valve cover gasket changed on my 1996


on a v6 ? Low on oil? rear cam plugs leaking? The lifters are on the end of the rocker arms and may get clogged. I have had some luck running 0w30 mobil synthetic for about a week or so with a new oil filter [Not a fram filter] and after that put 10w30 synthetic oil back in and a new filter. Check for oil leaking at other locations. If the noise is at the front of engine near water pump it may be the hydraulic timing belt tensioner.

Oct 06, 2009 | 1996 Isuzu Rodeo

1 Answer

Little esploitions in exauhst


sounds like valve timing is out

Nov 21, 2008 | 1992 Isuzu Trooper

2 Answers

My 2000 Isuzu Trooper needs a catalytic converter.


yes they have 2 cataletic convertors, one each bank
there is EGR codes, but only front O2 sensor codes and fuel trim codes no CAT codes
what were the scanner codes or flash codes i can work with both for helpful info
you can read codes by bridging pins 5 & 6 with ignition in on position engine not running


eb2c10d.jpg

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5 Answers

1993 Isuzu Rodeo engine tick at idle and other


a very common problem with these engines is a clicking sound in the engine, it can be a slight annoying click, to a loud knocking sound. I end result is usually the same, replace your timing belt and tensioner. I researched this problem when i bought mine, and it was knocking. i replaced the timing belt, (which was loose) and actually took the tensioner apart and cleaned it (not recommended for the mechanically challenged). new tensioners may be tought to find. when i put it all back together, it ran smooth and quiet.

Jul 16, 2008 | 1992 Isuzu Rodeo

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