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Mitsubishi Outlander Engine and Performance Problems

101 messages,  Last post on Nov 23, 2009 at 8:21 AM

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What is this discussion about? Mitsubishi Outlander, Engine, SUV

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#79 of 101 Re: problems with throttle lag fix? [smoke_1ers] by comem47 Dec 07, 2007 (8:48 am)
Replying to: smoke_1ers (Dec 06, 2007 11:48 am) Is that displayed MPG or actual MPG you are talking about?   I notice that I haven't approached the displayed 26 or 27 MPG on HWY since the change (now maybe 23 mpg) but it is colder as you say. The only true MPG is measuring by computing your own consumed gas vs miles. (unlike my wife's Malibu that is very close on the displayed average MPG). As others pointed out the display starts all over each time (my first few miles may say like 4 mpg, etc until enough miles are on it.) Mitsubishi should learn from others and change the way it works.   Lately in the cold my mileage is about 21 mpg US (with the throttle lag change made) with combined local and HWY miles. Last fall (warmer and before the change) I think it was close to 23 MPG   Hope this helps. for comparison (don't trust the display and make real measurements) Replies to this message: smoke_1ers (Dec 07, 2007 12:06 pm) clutchguy77 (Dec 10, 2007 10:02 pm) dr_d2005 (Dec 11, 2007 12:00 pm) comem47 (Dec 11, 2007 7:32 pm)
#80 of 101 Re: problems with throttle lag fix? [comem47] by smoke_1ers Dec 07, 2007 (12:06 pm)
Replying to: comem47 (Dec 07, 2007 8:48 am) the avg is higher, but i base the claim on actual mileage recorded from tank-to-tank. I haven't changed my driving style at all, and I'm getting between 50-100kms less per tank of gas. I've gone through 5 full tanks since the TSB, and its happened consistently each time. I usually get between 475-550 depending on how much highway driving I've done. now I'm lucky to get 450kms out of a tank.... usually closer to 400kms. Replies to this message: clutchguy77 (Dec 10, 2007 10:02 pm) dr_d2005 (Dec 11, 2007 12:00 pm) comem47 (Dec 11, 2007 7:32 pm)
#81 of 101 Re: 2007 Mitsubishi Outlander Engine Noise [madmachine] by rancho66 Dec 08, 2007 (10:17 am)
Replying to: madmachine (Jan 17, 2007 3:46 pm) I see this concern by madmax was never finalized...too bad as I have the exact same problem with the valves tapping at low rpm on a 2007 low mileage engine. I will be heading to the dealership soon to have them check it out. Probably will say it is normal or related to the cold weather. Has any one else had this problem and was it fixed? I know that there is no power loss and it is not a major problem, but with less than 2000 miles on a new vehicle, a quiet engine would be nice. I know our Outlander maintenance schedule includes a valve adjustment every 15k; perhaps I can get them to perform one early. Replies to this message: toomanyfumes (Dec 08, 2007 10:28 am) rancho66 (Dec 09, 2007 5:39 am)
#82 of 101 Re: 2007 Mitsubishi Outlander Engine Noise [rancho66] by toomanyfumes Dec 08, 2007 (10:28 am)
Replying to: rancho66 (Dec 08, 2007 10:17 am) I never saw anything about valve adjustment in the maintenance schedule, this would be pretty unusual for a new mainstream vehicle. I've noticed about a 2 MPG drop in mileage on the highway (from 25 to about 23) since the temperature dropped. It was about 10 degrees this morning. Replies to this message: rancho66 (Dec 09, 2007 5:39 am)
#83 of 101 Re: 2007 Mitsubishi Outlander Engine Noise [toomanyfumes] by rancho66 Dec 09, 2007 (5:39 am)
Replying to: toomanyfumes (Dec 08, 2007 10:28 am) Our "new mainstream vehicle" 2007 Outlander's Warranty & Maintenance Manual (P. 37) has this line on every 30,000 mile/24 month schedule: "Inspect and adjust intake and exhaust valve clearance. [4G6-MIVEC engine and 6G76B3-MIVEC engine (intake side) only] If valve noise increases, adjust valve clearance.* *This maintenance is not "scheduled" service, should be done any time."    I have read here and on other sites that Mitsubishi engineers say that it will not be required, but when they include it in their manuals than they will be covered if it does need adjustment. I found this line in the warranty manual Adjustment Period section: Adjustments required as a result of manufacturing deficiency are covered for 12 months or 12,000 odometer miles, whichever occurs first.   More than likely the dealer will take care of the adjustment with no charge. Will give it a shot.
#84 of 101 Re: problems with throttle lag fix? [smoke_1ers] by clutchguy77 Dec 10, 2007 (10:02 pm)
Replying to: smoke_1ers (Dec 07, 2007 12:06 pm) I had my throttle lag taken care of and I too have noticed a considerable MPG loss. I used to average about 24-26 highway and 18-20 in the city. It's down to about 21-23 highway and 16-18 in the city. I used to average about 330-350 miles per tank in mixed driving and now I'm down to about 270-300. We're talking almost 50 miles per tank. I have the same issue as I live in northern Wisconsin and it's getting colder here as well. I know mileage drops with the temperature, but it was never this bad last year before I had the throttle lag fixed. I'm going to wail until spring and see if it gets any better (i highly doubt it) before I take it back in. Replies to this message: dr_d2005 (Dec 11, 2007 12:00 pm) comem47 (Dec 11, 2007 7:32 pm)
#85 of 101 Re: problems with throttle lag fix? [clutchguy77] by dr_d2005 Dec 11, 2007 (12:00 pm)
Replying to: clutchguy77 (Dec 10, 2007 10:02 pm) Let me preface my statements with saying that I am not a gearhead and I do not own an Outlander, but am considering purchasing one. In response to the concerns about decreased fuel efficiency, I doubt it is secondary to the change in throttle lag and likely caused by the change in temperature. I do not know the exact physics of how it happens, but gasoline has a decreased amount of combustible energy the colder the temperature. In fact, I read an article a year ago that described a potential law suit against the oil companies because the price of gas does not change in the winter, but the consumer actually gets less gas, at least in terms of how much energy per gallon they receive, in the winter than the summer. As a result, for the same amount of money and the same volume of gas the consumer gets less energy and hence less miles or km per tank of gas.
#86 of 101 Re: problems with throttle lag fix? [clutchguy77] by comem47 Dec 11, 2007 (7:32 pm)
Replying to: clutchguy77 (Dec 10, 2007 10:02 pm) I guess we'll really know in the spring when the temps rise again, but I can't really see how the throttle lag fix would waste that much gas (remember that ALL Outlanders manufactured after the fix date now have the fix as standard). In the testing the submitted (now 2008) car would then do that much poorly in EPA dyno tests.(2008 ratings, by definition, will be different than the way things were measured in 2007, so it's hard to tell)   Could be wrong but I gotta feel the new programming can't be that wasteful of fuel in order to solve a minor transition problem when you consider that most highway is steady state driving.(or putting it another way, could they really be saving that much fuel the old way by making the car less drivable getting up to speed compared to others?) I do know the car is much more drivable now in stop and go driving than before the fix.   Supporting the "cold" effect, my wife's Malibu was steadily exceeding 30 mpg in warmer weather and now she is complaining of seeing 27 or less. (cold or winter fuel mix is the likely cause as no changes have happened with her programming and car is around 25K miles...neither breaking in or old)
#87 of 101 Re: problems with throttle lag fix? [smoke_1ers] by souellette Dec 13, 2007 (8:25 pm)
Replying to: smoke_1ers (Dec 06, 2007 11:48 am) Hi smoke 1ers,   i was wondering if you can provide me with an update of the lag fix. what has mitsubishi done for you in this matter? i have not asked for the lag fix but am sort of concerned that they may have done it with out my permission. the reason is i too have experience a very noticable change in the mpg i get . before i was getting anywhere from 520- 750 kms. i will have to make sure to see if i have any lag still.
#88 of 101 Re: 2007 Mitsubishi Outlander Engine Noise [madmachine] by souellette Dec 13, 2007 (8:54 pm)
Replying to: madmachine (Jan 18, 2007 3:08 pm) hi madmachine,   i was wondering what was the final result int he noise you had in your engine? i too have a clicking sound coming from my engine recently. i am presty sure that it was a lifter or something like that and i was just wondering if you could shed some light on that. i know it is not any relay as some of them think. did you find that your mileage went down as well when the sounds started? i do, almost half as it once was. as well did you get the lag fix and was it worth it? Replies to this message: rancho66 (Dec 17, 2007 4:03 pm) growwise (Dec 18, 2007 6:13 pm)

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