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....

OP

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

P1870

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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