No joy on sooty Navara

Herald Sun - Motoring - - Ask Smithy -

I BOUGHT my D22 Nis­san Navara ST-R in 2010. It was six months old and had done less than 50,000km. I im­me­di­ately no­ticed a smoke prob­lem. At 2800rpm or more it pro­duced large amounts of black smoke un­til a con­stant speed was reached. Nis­san had the dealer look at the prob­lem and af­ter be­ing called in no fewer than a dozen times con­cluded that the smoke is not smoke but soot and they can do no more. Surely soot is a prob­lem in it­self and would ex­ceed EPA guide­lines. Nis­san says, via the dealer, it’s done all it can. What should I do now? Peter Ritchie, email Nis­san’s re­sponse isn’t ac­cept­able and you’re right, the EPA would prob­a­bly put your car off the road if they saw it. It isn’t nor­mal, and sounds as if it’s get­ting too much fuel when ac­cel­er­at­ing. I would have a diesel en­gine spe­cial­ist check it; I’msure they would be able to find the cause of the prob­lem for you. NEG­A­TIVE GEAR­BOX I read with in­ter­est about gear­box over­heat­ing prob­lems in Toy­ota utes and won­der if this also ap­plies to the lat­est Prado with the same D4-D en­gine. I towed a six-me­tre car­a­van to Queens­land and back over three months with my 2010 Prado GX. Go­ing up the Ade­laide Hills the gear­box over­heat warn­ing light came on, much to my con­ster­na­tion. How­ever, as we were nearly to the top we car­ried on and once over the light went off. There were no se­ri­ous hills to ne­go­ti­ate un­til we came to the hor­ren­dous climb on the road be­tween Bate­mans Bay and Can­berra in NSW. The light came on again and I was forced to stop four times in some fairly pre­car­i­ous places to let the gear­box cool down. When we fi­nally made Can­berra we went straight to the Toy­ota dealer who ad­vised that they knew about the prob­lem and it was fixed by a re-pro­gram­ming of the gear­box com­puter. We had no fur­ther prob­lems for the rest of the trip, but I must ad­mit to be­ing a bit scep­ti­cal about the com­puter fix and would like to know if any other com­plaints of this na­ture have sur­faced. As we are con­sid­er­ing an­other trip, would it be pru­dent to put an oil-cooler on the gear­box? I has­ten to add the loaded weight of the van was 2350kg and un­der the 2500kg limit Toy­ota ad­ver­tised. Apart from this glitch, the ve­hi­cle per­formed bril­liantly.

Mal, email Your ex­pe­ri­ence is not un­com­mon. We had a num­ber of re­ports from HiLux own­ers in the year or so af­ter the ute was launched but we thought the re­pro­gram­ming of the com­puter had fixed the is­sue. Per­haps it hasn’t. Talk to your Toy­ota dealer, and also get the ad­vice of an auto trans­mis­sion ex­pert about fit­ting an ex­ter­nal oil cooler. If you plan to travel over hilly ter­rain on your next trip it would be a good idea to fit an ex­tra cooler. EVO X RATED At the end of Jan­uary I bought a 2008 Mit­subishi Lancer Evo X from a dealer in Mel­bourne. I shook hands on the ver­bal agree­ment that prior to de­liv­ery they would re­pair the wheels, which had all been badly gouged by the pre­vi­ous owner. They did not do this, they then de­liv­ered the car with about 86,000km on the odome­ter when they had ad­ver­tised 83,000km, and now a num­ber of other faults have come to light. Of great­est con­cern is a rat­tle in the en­gine in the vicin­ity of cylin­der three. I ad­vised them of the faults

No smok­ing: Ex­haust soot plagues the owner of a Nis­san Navara

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