Question about 2000 Isuzu Rodeo

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2000 Isuzu Rodeo Check Engine Light

Kept geting " check engine" light on my Isuzu Rodeo. Spent a bunch of money to get it fixed but nobody could until I found an old experienced mechanic. Turns out to be the "transmission position switch" on the transmission handle on the floor. A small switch to tell the engine to adjust fuel air mixture. Was told this is a very common problem.

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  • poddle Aug 03, 2008

    keep reading the egr val and inficie flow

  • Anonymous Jan 16, 2009

    check engine light comes on and off had it checked its the egr value i had some one do intake clean hoses any thing dealing with emission light came back on after 30 miles whats next

  • tmadden4000 Jan 16, 2009

    code egr value low insulfficate had clean intake, hoses, egr,ect..... done the light came back on after 30 miles whats next

  • mlturk Feb 14, 2009

    where is the transmission pos. micro switch

  • tigasonleefo Feb 14, 2009

    My Isuzu Rodeo,is starting very good.but if you engaged gear and drive enter on porthole showing check Engine,check Transmission,cruser set.And Engine is off?sometime if you shake body with hands showing the same and off.

  • mellenb Mar 21, 2009

    I also have a check engine light that keeps coming on...isuzu rodeo as well...mechanic can't seem to find the cause...thinks it has something to do with the throttle...when it is finally NOT lit it comes on when you step on the gas..says not ready for sticker even when off?.any ideas???/

  • Anonymous Apr 22, 2009

    Similar problem -- check engine light, servicing of egr hose and valve, but the light returns and is on continuously. Engine seems to be running fine and getting good mileage.

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After you change the gas cap like everybody tells you. The transmission position micro switch on the floorboard.

Posted on Jul 07, 2008

  • Anonymous Oct 27, 2016

    if you listen on the internet to non techs
    you will get wrong answers, most posters fail this....(most think cars are all the same, and is WRONG)
    to even say what engine they have? nor trans.
    so, with dead empty inputs even a genius guesses wrong, right>? no me I didnt guess.
    The "old experienced,"
    so you use Mechanics with no experience nor training before?
    gee all cars scan now and all can do like 100 errors, or more. DTC warning,
    "DIAGNOSTIC TROUBLE CODES" (by law)
    all ASE mech, know how to fix cars,

    check fuse first (means test them)
    then scan it.
    then post the error
    or login to mitchells DIY and read what the error means (DTC's) then you have facts.
    guessing the 100 possible is silly to a fault. really.

    yes gascap loose sets a DTC error
    like P0455
    the P044x series for EVAP failure
    EVAP means gas tank vent failure.
    and if cap is missing or leaking, (loose)
    the fumes vent (and mother earth dies)
    and the nanny in the PCM finds that and tells you if you listen (read) it.

    or try this?
    get car fixed or serviced.
    get car scanned where ever.
    get car scanned for free at many places
    buy a scanner.
    rent a scanner.
    barrow a scanner.
    and for sure try not to be rank helpless.

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Kelly Taylor wants more answers to this question
Posted by Mike on Jul 03, 2008
kelly please start your own post
there can be 1000s of possible problems.
and up to 100codes. the car and the EFI are complex its not some kids toy car..
check fuses, and then scan it.
like everyone else does in all cars made with EFI.
all.
or just drive to the shop and has them to scan your car.
is that hard?

so your PRNDL switch was bad
well gee the PCM reported that if you asked it.
and on most cars this error is serious.
on many cars the PCM goes in to limphome and with the transmission too can go to limphome mode.
this is to protect you and the transmissison from damage. and performance falls in limphome on all cars made.
google that or take the ASE class in EFI.
it's all there, and all factual.
check fuses first
then scan it,
or get car serviced like 99.9% do, today.

Posted on Oct 24, 2016

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SOURCE: Check engine light-isuzu rodeo

Gas cap isn't on right. Remove and retighten. Turn it at least 5 times.

Posted on Dec 26, 2008

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