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Isuzu Trooper 4 wheel drive display flashes check light

24 messages, Last post on Nov 06, 2009 at 6:44 AM
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| my trooper has now 4wd.the high never worked but the low always did until today.can i apply vacuum to the front axle actuator and put it in 4 low to isolate the actuator?any help would be great i just bought used just to have 4 wd.what else can i do or check?thanks.im new to the site also.i would like to get the 4 high working also.my tod flashes the red check and rear wheels flash green at times. | |
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http://isuzufaq.ibctech.ca/#faq68 Check the above link for into how to locate the VSV on your front axle. (Vacuum Switch Valves.) I fixed mine FREE as follows: First, remove both VSVs from the axle. They are both mounted on a little rectangular plate, and both will come off by undoing two 10mm nuts. One VSV is BLUE, the other is GREY. Label and unplug all the vacuum hoses (carefully!) and then disconnect the electrical lead from each VSV. The electrical connector plug is a bit tricky to disconnect...you have to pry up a thin, springy brass colored retaining wire on each side of the connector, then GENTLY pry the connector off with a twisting motion of a straight-blade screwdriver. EASY DOES IT because that thing is fragile..if you crack the connector, you're 99 per cent hooped. Once you have the VSVs off, use little jumper wires with alligator clips on them to connect to the electrical spades inside the plastic housing of the VSV. Hook the other end to the car battery and listen for a VERY QUIET "click" from the solenoid inside the VSV. This solenoid controls the vacuum flow to the vacuum actuator, which moves a toothed sleeve back and forth across splines on the ends of the axles, which is what drives the front axles when you press the dash SOFT switch. The whole purpose here is to get the VSVs clean and operating properly. You might not have to replace them at all...just shoot some NON-GREASY electrical contact cleaner into all the outlets of the VSV and operate the solenoid a whole bunch of times...get it working freely again. (NOTE: DO NOT USE WD 40 or anything greasy / oily to spray inside the solenoid!!!!!!!! Make SURE you use a solvent based cleaner that DISAPPEARS completely when it evaporates. Spray some into your hand to make sure. Use electrical contact cleaner, specifically made to clean electrical parts. TRUST ME HERE...test your product on your hand to make sure it does not leave ANY residue.) GOOD LUCK DOODS!!!!
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Replying to: wesbellmore (Nov 16, 2008 5:45 pm) |
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Just recently on my 2002 Trooper the TOD display flashes the red CHECK light. In my problem, as soon as the engine starts the light starts flashing. Just the red CHECK light. My "Auto 4WD" does not seem to work. The 4WD low does work properly. I checked the vacuum solenoids and they seem to be functioning properly when I test them off the vehicle. Any ideas on where to go from here? John
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Replying to: jbcol1 (Mar 09, 2009 10:59 am)
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Replying to: brentb1 (Mar 09, 2009 2:10 pm)
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| I recently had the intake manifold values replaced on my 1999 Trooper 3.2 and now I have a problem with my display of the TOD the rear wheel display green flashes and the check light flashes red. My 4 wd drive will engage and 4L has no problems. Sometimes the transmission will slip. Help any answers? | |
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Replying to: atfdmike (Feb 16, 2008 10:29 am) |
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| I found the problem to my TOD system. The flashing display light in the TOD area was losing the signal to the traction system in the rear end that was assoicated with the sensors in the rear wheels. Remember to reset the computer once you have fixed the sensors problem by disconnecting the battery to have the computer reset itself. I hope this helps anyone else out there. | |
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Replying to: jbcol1 (Mar 10, 2009 8:56 am) |
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