Tow ca­pac­ity within lim­its

Herald Sun - Motoring - - Ask Smithy -

MY wife and I are look­ing for a Jeep Wran­gler Un­lim­ited Sport Diesel Auto and I note that the 2007 and 2008 mod­els have a very mod­est 170kg un­braked tow­ing ca­pac­ity, whereas the 2009 mod­els on­wards have a 750kg un­braked tow­ing ca­pac­ity. The braked tow­ing ca­pac­ity for all mod­els is 2300kg. Tow­ing is im­por­tant for us as we have a large car­a­van (braked), but also two smaller (sin­gle and tan­dem) trail­ers. I un­der­stand from Jeep Cus­tomer Ser­vice that the tow­ing ca­pac­ity may be lim­ited by ve­hi­cle com­pli­ance, but I don’t un­der­stand what the phys­i­cal dif­fer­ences in the mod­els may be to have such a dif­fer­ence. Do you know why this is please?

Jonno, email We checked with Chrysler and the in­for­ma­tion they pro­vided was that all Lim­ited mod­els have the same un­braked tow­ing ca­pac­ity, 750kg. You might be con­fused with the tow­ball rat­ing, which is 170kg. COOLER IS FINE I re­ceived an En­gel ther­mo­elec­tric cooler (model TE 08) as a Fa­ther’s Day gift and was won­der­ing if it would over­load the al­ter­na­tor on a Kia Sorento if used for four or five hours at a time? Also, would it af­fect the war­ranty?

DonBonny, email We asked Kia and we were told: ‘‘ The En­gel ther­mo­elec­tric cooler model TE 08 draws 4 amps per hour, so if the engine is run­ning there should be no is­sue with the cooler. There is no is­sue with the war­ranty on the amp. If the cooler is used for ex­ten­sive pe­ri­ods with­out the engine run­ning then the bat­tery will be on a con­stant drain­ing/ recharg­ing cy­cle that could re­duce the life of the bat­tery.’’ RAVOVER-REVS I have ex­pe­ri­enced a sim­i­lar prob­lem with my 2007 Toy­ota RAV4 Cruiser L auto to that ex­pe­ri­enced by Colin Smith ( Cars­guide, Novem­ber 9). On nu­mer­ous oc­ca­sions the engine has revved to max­i­mum revs. It is quite un­nerv­ing. Most times it has oc­curred in my drive­way when park­ing. I have pulled up, taken my foot off the ac­cel­er­a­tor and on to the brake and then shifted to park and the car has gone flat out to full revs with my foot nowhere near the ac­cel­er­a­tor. It’s also hap­pened twice when I have been over­tak­ing and the car has seemed to shift into neu­tral when I have planted my foot to ac­cel­er­ate with no power for a split sec­ond, then roar to full revs which has caused me to abort my at­tempt to over­take. My me­chanic could find no fault, but thought it could be a com­puter prob­lem.

Jenny Burns, email

Toy­ota says it will in­ves­ti­gate the is­sues re­ported by Colin Smith if our reader gives his con­sent, and we are keen to hear the out­come of any in­ves­ti­ga­tion that takes place. Your me­chanic could be right when he sug­gests it may be a com­puter prob­lem. LANCER CRAWL­ING At the first set of traf­fic lights I come to my 2010 Mit­subishi Lancer CVT goes into a dan­ger­ous crawl mode and barely moves. I have tried shift­ing to man­ual mode, but

Big lug­ger: The Jeep Wran­gler’s braked limit is 2300kg

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