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Isuzu Trooper: Timing Belt Problem

16 messages,  Last post on Nov 20, 2009 at 5:12 PM

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What is this discussion about? Isuzu Trooper, Engine, SUV

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#7 of 16 Re: timing belt [shonie65] by greasemonkey27 Oct 01, 2007 (1:13 pm)
Replying to: shonie65 (Sep 10, 2007 4:04 am) If t-belt light is on, then you definitely need to change it. If you look in your service pack you will find that t-belt change also time sensitive. Sounds like yours is well overdue.
#8 of 16 back fire/no power by changus02 Oct 10, 2007 (6:28 pm)
I recently rebuilt the engine on my 1998 trooper and am 99.9% positive I have the timing belt in the right position. I have no power and backfire when i push the throttle until about 2000 RPM. any suggestions? Replies to this message: valentius (Nov 20, 2009 5:12 pm)
#9 of 16 1994 Trooper Timing Belt Replacement by wboomer61 Oct 27, 2007 (12:16 pm)
Have a 94 Trooper 3.2. Changing the timing belt. Cannot get the crankshaft pully bolt to break loose. Any advise/ Help! Also is it possible that the belt slipping has bent the valves? The truck would not start. Replies to this message: atfdmike (Oct 29, 2007 11:36 am) chaison (Nov 14, 2008 4:07 pm)
#10 of 16 Re: 1994 Trooper Timing Belt Replacement [wboomer61] by atfdmike Oct 29, 2007 (11:36 am)
Replying to: wboomer61 (Oct 27, 2007 12:16 pm) I have the same model, DOHC. The bolt is a bear to loosen. I use an impact but I had to remove the radiator to use it. I have since seen where if you CAREFULLY use a long breaker bar and wedge it against the frame or other hard point and then quickly bump the starter it will break the bolt loose. I suggest unplugging the connectors to the coil packs in order to assure the engine does not start. I have seen this done but not on an Isuzu, but I see no reason it would not work, as it is a right hand threaded bolt. Also, the harmonic balancer is a slip fit so it will usually come right off if you are careful to use a remover or carefully apply even pressure to it on opposite sides. Good luck   This engine is a non interference engine, according to the experts. There is a warning in the manuals, but I am pretty confident that you should not have any damage unless you really over revved it or drove it a long time with it mis timed, .....which usually cannot be done as the engine will run poorly if at all. One guys opinion.
#11 of 16 belt tensioner by hermanceusmc Mar 29, 2008 (10:00 pm)
I am in the middle of changing the timing belt on my 02 trooper. I cannot get the serpentine belt tensioner off to get to the timing belt cover. I have taken all bolts out but there either is a dowel pin or another bolt inside the tensioner. Any suggestions would be greatly appreciated.
#12 of 16 Engine want start & there is oil on the outside of spark plug by geronimeaux Jun 17, 2008 (11:27 am)
My '95 Trooper quit running. It turns over and tries to start but it's as if it's not firing. I assumed it to be the timing belt needs replacing. Anyway, I started pulling spark plug wires to take out the plugs as the Chilton suggested and when I got to #3 plug the wrench came back drenched in oil. What's the significance? Replies to this message: brentb1 (Mar 28, 2009 10:51 am)
#13 of 16 Re: 1994 Trooper Timing Belt Replacement [wboomer61] by chaison Nov 14, 2008 (4:07 pm)
Replying to: wboomer61 (Oct 27, 2007 12:16 pm) well You need a long !/2" drive Breaker bar or at least a 24" craftsmen (strong one) and a pipe over it for leverage(mayb). I have a 32" I got from harbor freight. Use a small socket not a long deep one. Use a 14" pipe wrench tighten it up top lip inside of pulley bottom lip tight against outside of pulley lodge other end against frame or something very solid and pull lefty loosey righty tighty
#14 of 16 isuzu trooper 3.1 citation diesel by egyptgerry Mar 15, 2009 (11:04 am)
changed the cam belt but how do you turn off the warning light on the dashboard
#15 of 16 Re: Engine want start & there is oil on the outside of spark plug [geronimeaux] by brentb1 Mar 28, 2009 (10:51 am)
Replying to: geronimeaux (Jun 17, 2008 11:27 am) you need new grommets that go in the under side of the valve cover.that will stop the oil getting into the tubes
#16 of 16 Re: back fire/no power [changus02] by valentius Nov 20, 2009 (5:12 pm)
Replying to: changus02 (Oct 10, 2007 6:28 pm) That is due to bad spark plugs or cables, or maybe the O2 sensor too. Regards,

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