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April 25th, 2006 02:48 PM #1
isuzu experts, i need your help...
i few days ago i was driving my bighorn when suddenly the "check transmission" LED on the dash started blinking. but before that i also noticed that the speedometer started to become erratic and stopped working. i also noticed that once the LED started blinking i was experiencing delayed shifting. i checked all fluid levels and everything is normal. can anyone shed some light on what is causing the "check transmission" LED to blink?
weird thing is, this does not happen all the time. and at ignition the LED does not blink and works normally. its only after driving the vehicle for a certain amount of time does the LED start to blink. and when it does
i hope someone can also recommend a mechanic who knows the internal workings of a converted unit (lalo na yung mga sensors, etc). maraming salamat po in advance.
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April 25th, 2006 07:47 PM #2Originally Posted by attic_dude
I assume your ride is AT. I dont own an Isuzu, but I have an idea on what's causing your problem. The blinking LED on the dash is similar to Honda's blinking "D4" light. Since that sensor is dependent on the speedometer/ tachometer for shifting points, fixing the speedo will solve your problem.
Anyway, sabi mo naman the AT fluid level is ok, and smells ok...
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February 27th, 2007 12:46 PM #3[QUOTE=Galactus;] I assume your ride is AT. I dont own an Isuzu, but I have an idea on what's causing your problem. The blinking LED on the dash is similar to Honda's blinking "D4" light. Since that sensor is dependent on the speedometer/ tachometer for shifting points, fixing the speedo will solve your problem.
Our 1996 Accord A/T has the same blinking D4 light problem and a non functioning speedometer. Where can we have it fixed other than sa casa? Madali lang ba ayusin to? Sa casa kasi mahal na, kung anu ano pa ang sinasabing sira other than the one you're complaining about. Yung shop sana preferably in the Paranaque-Las Pinas-Alabang area. Thanks in advance.
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February 27th, 2007 01:15 PM #4
Madali lang yan, any reputable shop in your area can replace the VSS (Vehicle Speed Sensor). AFAIK, its located near the tranny
Sa Banawe, mga 2k ang surplus, 4k+ ata ang brand new.
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April 25th, 2006 08:37 PM #5
good insight galactus, but what would explain yung delayed shifting? ganito kasi yung order ng symptoms niya:
1. speedometer stops working
2. check transmission light blinks
3. delayed shifting occurs.
sorry, forgot to mention na AT yung bighorn namin.
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April 27th, 2006 12:57 PM #6Originally Posted by attic_dude
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April 25th, 2006 11:11 PM #7
i think the delayed shifting is probably a "limp mode" or "safe mode" of your car. with today's complex ECUs, any perceived malfunction that the ECU detects causes the vehicle to run in safe mode; meaning, the car will not run to its full capacity because safe mode is only meant to bring the car to the nearest shop or service center.
i don't own an isuzu as well but i can give you an analogy of what happened to my bmw while driving on edsa. all of a sudden, my abs warning light and drivetrain warning lights came on. apart from the warning lights, the AT experienced delayed shifting, up to the point it wouldn't shift up from 2nd gear. when i brought it to autohaus bmw in libis, i was told that safe mode or limp mode prevented me from going fast in view of the warning lights that's why the transmission would no longer shift up. turned out that i had a busted wheel speed sensor on the driver's side front wheel. from the looks of it, your problem might be sensors as well, specifically electronic in nature
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April 26th, 2006 09:49 AM #8yeah, parameters of the computer are dependent on certain sensors like the one that powers the speedo. if it's busted, the engine can't get the correct readings kaya that's what happens.
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April 26th, 2006 07:43 PM #9
hmmm, that makes alot sense speedyfix and momoyster, salamat. one other thing that i noticed, that might support your answers, is that yung mechanic namin disconnected kasi yung battery ng isuzu, after a few minutes binalik niya and i started to test drive the vehicle. i noticed right away that everything was working fine. pati yung shifting. then after a few kilometers ayan nanaman.
ang problem ko ngayon is sino kaya pwede tumingin ng isuzu namin? speedyfix kaya niyo ba mag ayos ng big horn?
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April 27th, 2006 01:03 PM #10Originally Posted by attic_dude
same thing as mine. pag bagong start ok pa sya. after a while ayan na. dont worry too much. i had mine checked at isuzu bulacan. they used a computer to find the fault.
at first kala ko barado lang un oil filter ko. pinalitan ko din. wala nangyari. hehe
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