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#1
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Need info on '99 TDI with low power!
I just bougt a '99 Jetta TDI for a very good price, only has 87k miles
on it. BUT, it is very underpowered on acceleration, street or freeway. I can get to 70 mph on the freeway, but it definitely is not accelerating right. Nothing else seems wrong when driving, just the acceleration. I suppose it could be related to the injectors, or the turbo, or maybe just a fuel filter that the gal never changed. Does anyone have any suggestions on what a likely explanation of this problem would be? thanks |
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Need info on '99 TDI with low power!
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#3
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Need info on '99 TDI with low power!
> wrote in message oups.com... >I just bougt a '99 Jetta TDI for a very good price, only has 87k miles > on it. BUT, it is very underpowered on acceleration, street or > freeway. I can get to 70 mph on the freeway, but it definitely is not > accelerating right. Nothing else seems wrong when driving, just the > acceleration. > > Diesels have ****-poor acceleration. That is like their only problem. Certain car manufacturers try to compensate somewhat by turbo-charging. But I suspect your Jetta is working just fine, if you've never driven a diesel before. -Dave |
#4
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Need info on '99 TDI with low power!
Diesels have ****-poor acceleration. That is like their only problem.
----------------------- I thought the TDI had plenty of torque. That would translate in strong acceleration. And besides, a well-functioning TDI should definitely be able to exceed 70 mph. |
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Need info on '99 TDI with low power!
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#6
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Need info on '99 TDI with low power!
Well, yeah, if you race kids in Camaros for pink slips your only hope
is that they can't see you in their mirrors anymore by the time they're ready to collect. But if it can't make 70 on the highway, something's wrong. There could be a number of causes, including * Slipping automatic transmission or clutch (regarding acceleration in manual-transmission models, note that everybody says these things ought to be upshifted earlier than you'd expect from experience with small gassers) * Engine controls * Injection pump or other fuel-system components * Being just flat wore out. Not my bet, given the robust little engine, but there are people whose driving and maintenance habits could wear out the crust of the earth and expose the outer mantle in eight years and 90,000 miles. Time to consult the factory repair manual and/or refer it to a mechanic who knows these cars. BTW, it's a bit late to hear it now, but you may find out why you got it for "a very good price" -- it could be some little thing or some semi-big thing (though it'd have to be as big as a semi to rival the depreciation, insurance, etc., let alone the whole price, on a new car). This is also why one is well advised to consult a trusted mechanic with no vested interest in the deal before buying a car. You're paying not only for expertise but for objectivity, since by that stage you more or less by definition want the car. Best of luck, --Joe |
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Need info on '99 TDI with low power!
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#8
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Need info on '99 TDI with low power!
Funny, I find one can burn rubber just fine in a stock TDI.
The the original posters, your MAF is malfunctioning or intake is clogged. Check out tdiclub.com for more info. |
#9
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Need info on '99 TDI with low power!
Mike T. wrote: > > wrote in message > oups.com... > >I just bougt a '99 Jetta TDI for a very good price, only has 87k miles > > on it. BUT, it is very underpowered on acceleration, street or > > freeway. I can get to 70 mph on the freeway, but it definitely is not > > accelerating right. Nothing else seems wrong when driving, just the > > acceleration. > > > > > > Diesels have ****-poor acceleration. That is like their only problem. > Certain car manufacturers try to compensate somewhat by turbo-charging. But > I suspect your Jetta is working just fine, if you've never driven a diesel > before. -Dave definitely not. A TDI is a badass little car, not a whole lot of HP but it should have hand-of-God torque. Everyone I know that's driven a TDI has raved about it. There's something wrong with the OP's car. nate |
#10
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Need info on '99 TDI with low power!
John S. wrote: > wrote: > > I just bougt a '99 Jetta TDI for a very good price, only has 87k miles > > on it. BUT, it is very underpowered on acceleration, street or > > freeway. I can get to 70 mph on the freeway, but it definitely is not > > accelerating right. Nothing else seems wrong when driving, just the > > acceleration. > > > > I suppose it could be related to the injectors, or the turbo, or maybe > > just a fuel filter that the gal never changed. Does anyone have any > > suggestions on what a likely explanation of this problem would be? > > > > thanks > > You should get reasonable acceleration from a TDI, but it is not a tire > burner. Sure it is. In stock form, it can spin the tires in the dry. > And the response is going to feel sluggish compared to a > gasoline engine car. Obviously you've never driven one. In a 0-35 (like in town), it gets up and moves out. Up above that, it runs out of RPM. > That said if you are getting poor acceleration > you might suspect a bad turbocharger. Errr, the turbos on VW/Audi cars are pretty tough. You have to work pretty hard to blow them up. > If the previous owner was not > meticiulous about having frequent oil changes then the turbo bearings > may be shot and the turbo is barely running if at all. Heh. I'm not sure where you get your info, but it's not based in reality. E.P. |
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