Question about 2002 Isuzu Axiom

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I have ISUZU AXIOM 2002 4X4, on a dashboard 2 lights are ON, Engine Check and CHECK TRANS blinking every 2 seconds. checked on tech 2 device it gives a DTC NUMBER P 1870. Car itself operates very well, shifts gears etc. when i deleted this error by tech2 device lights went off and didn't appear when i was driving only in city. As soon as i go on highway about 2 hours of driving and first A/T OIL TEMP light goes ON, after i stop car and give a rest, the light goes OFF but then, after highway driving Engine Check and CHECK TRANS lights are ON. can the Transmission fluid change fix this problem ?

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Hyjakker , your engine was misfiring, this OP poster is not an engine question at all, .... so....


no person on earth can answer that. (can this fix it)


with all trans DTC

some are real, trans bad.

or other are the switches failing or solenoids failing

did you open the book first. read the page P1870

USe only ISUZU FSM as it has its own P1 codes.

do not read other makers codes, for P1 codes,ever..

P1 is factory codes, not fed codes. like P0

moving on...

AFT levels at spec.

AFT pink or red, not black or worse black and metal flakes?

if it looks ok its ok. in most cases. so.....

my online fsm shows no DTC';s (typical for isuzu junk)

here is 1st google hit by Judge-roy.

pretty good IMO....quote.

P-1870 means "Transmission component slipping". A very common problem with these transmissions which sets a P-1870 is 2 valves in the valve body, the TCC regulator and isolator valves. The reason for the problem is these valves wear out their respective bores, the converter clutch apply oil passes by the worn valves lowering the apply pressure of the converter clutch. The clutch then starts slipping and chattering, sets a P-1870 and maxes out the line pressure causing harsh shifts. The way I usually fix these is with a kit from Sonnax. The valve body is removed, both tcc regulator and isolator valves are removed, their bores reamed, sleeves installed with new valves. This is what needs to be done and will cure 95% of P-1870 issues.

end quote.

are all gears shifting to all gears

and not slipping when flogged hard.

do not drive a slipping A/T or you will burn the clutch packs to death fast. $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

Posted on Jul 21, 2015

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My check engine light would blink but would not show code. I changed spark plugs and it stoped

Posted on Feb 01, 2009

  • prinx Oct 05, 2013

    I have the exact same problem on my 2002 isuzu trooper. did you ever find the problem?



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I have 2002 Isuzu trooper 4X4, on a dashboard 2 lights are on, Engine Check and CHECK TRANS blinking every 2 seconds. Car itself operates very well, shifts gears etc. when I drive around town it works...

Have you checked for Diagnostic Fault Codes yet? Have your local auto parts store check for codes if you don't have access to a code reader. New Bluetooth OBD readers (ELM327) that pairs with your smartphone or laptop and a free app. (Called "Torque") Great reader for under $20 in most cases. Start there first. Is there a Temp Gauge for coolant? If so.......what is the operating temp doing during those highway trips? If the coolant is overheating, it may be heating the transmission too.
1. Check for codes.
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Apr 03, 2010 | 2002 Isuzu Axiom

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Sorry it couldn't be more, good luck!

Apr 06, 2009 | 2004 Isuzu Axiom

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That can be from dirty oil or a clutch pack or band slipping or low oil pump pressure in the transmission
you say that it occurs on highway driving after 2 hours and that slipping will add friction heat to the transmission oil bringing on the oil temp light
take it to an accredited transmission professional service center that works on your make of vehicle , have the oil changed which require the pan removal
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when reassembled and refilled , have a pump pressure test done

Apr 16, 2017 | 2002 Isuzu Axiom

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My isuzu axiom 2002 model indicates check engine what do i do?

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Nov 24, 2008 | 2004 Isuzu Axiom

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Check engine light on

I have the same vehicle, and it is usually caused by the gas cap being loose or not sealing properly. Double check and make sure that it is tight and the code will automattically reset itself. If this doesnt work, Schucks/AutoZone will give a free code check and let you know what it means.

Nov 01, 2008 | 2002 Isuzu Axiom

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