Car/Throttle/Power Pulsating....???
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Car/Throttle/Power Pulsating....??? - 4/19/2008 10:10:31 PM
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390HPTypeR
Posts: 17
Joined: 4/18/2008
Status: offline
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My car just started to pulsate and slightly hesitate when driving bewteen 40-70mph and the RPM's are under 2000...
IE...As I'm getting on the highway, while on the on ramp, slowly gaining speed to merge with the traffic, my car begins to pulsate and slowly jolt as I'm giving it more throttle. It isn't noticeable until after 2nd gear and as the car shifts into 3rd around 40mph and the revs are under 2000. As I begin to give it more gas, this is when it begins and pretty much stays steady up until I reach 70mph...
Has anyone else ever experienced this or heard of something like this...I've read through many of the threads and tried searching but nothing has come up...I have read about the 'lurching' but that is only in regards to coming to a stop...
Any info is greatly appreciated....
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RE: Car/Throttle/Power Pulsating....??? - 4/20/2008 6:12:28 AM
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FactoryJaguarTech
Posts: 2972
Joined: 1/6/2008
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What year is your car. V6 or V8? I assume it is an S?
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If it ain't broke, don't fix it!!!
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RE: Car/Throttle/Power Pulsating....??? - 4/20/2008 9:29:09 AM
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390HPTypeR
Posts: 17
Joined: 4/18/2008
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quote:
ORIGINAL: FactoryJaguarTech
What year is your car. V6 or V8? I assume it is an S?
Sorry, I should have stated that...It is a 2003 S Type R...It has around 49K miles...
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RE: Car/Throttle/Power Pulsating....??? - 4/20/2008 9:59:18 AM
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badmojo
Posts: 691
Joined: 12/30/2006
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It's in his user name but shouldn't it be 400HPTypeR?
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BAD MOJO
2003 S TYPE “R”
http://www.cardomain.com/ride/2971978
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RE: Car/Throttle/Power Pulsating....??? - 4/20/2008 10:57:24 AM
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390HPTypeR
Posts: 17
Joined: 4/18/2008
Status: offline
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quote:
ORIGINAL: badmojo
It's in his user name but shouldn't it be 400HPTypeR?
From...http://wikicars.org/en/Jaguar_S-Type
The supercharged S-Type R joined the lineup in 2003. The "R" is powered by a supercharged V8 producing 390 hp (291 kW), and can go from 0 to 60 mph in 5.3 s (0 to 100 km/h in 5.6 s). It includes 18 in (457 mm) wheels, wire mesh grille and dramatic monochromatic paint. The R also has a sportier front fascia with fog lamps built-in, a rear spoiler, a brace located near the rear subframe, and "R" badging on the rear deck lid and both front fenders. It is the most expensive S-Type, with a base price of US$58,995.
Jaguar first stated that the R made 400HP...but the ZF gearbox actually does not allow it to make that full amount of power and put it down thru the wheels, due to it's gearing and shift patterns. Jaguar addressed this in the '06 models I believe, as they are able to put down the full 400HP.
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RE: Car/Throttle/Power Pulsating....??? - 4/20/2008 12:35:07 PM
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FactoryJaguarTech
Posts: 2972
Joined: 1/6/2008
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Does the check engine light come on at all or blink a little?
From the sound of what you are saying, probably needs a coil or two. Hard to say without driving it.
Also, there may be water ingress into the TPS. There is a bulletin to install a patch under the cowl to prevent water dripping on it.
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If it ain't broke, don't fix it!!!
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