Surging with Cruise Control On - Land Rovers Only

hermanpj · 01-20-2005, 08:16 AM

My 03 Discovery surges ahead and slows down (and repeats this cycle without end) when using cruise control. It can make one physically ill. Has anyone encountered this and know what to do to either resolve it or at least lessen the severity?

I brought it to the dealer who told me 'yeah, the cruise control never was very good in these cars. we'll try to tune it, but don't expect much improvment.' it didn't improve at all.

any help?

Disco Mike · 01-20-2005, 08:50 AM

If I were you I would call the local Rover zone office and let them know what the service dept told you, Rover won't like that.
Usually when that happens there is either a vacuum leak or a bad control unit, and no it is not normal, they are so full of S--t.
Mike J.

TerryS · 01-20-2005, 09:15 AM

I agree with Mike. I'd look at the hoses for a crack at a fitting. My 97 Disco (other than my wife's Freelander, the only one with CC) is rock steady at whatever speed I set it at.

hermanpj · 01-21-2005, 10:51 AM

thanks gents. will check out the hoses and fittings.

pzwerner · 01-21-2005, 12:02 PM

I just fixed thCC on my "98 LSE. There was a split at the "T" on the line going to the pump. Hope this helps ...
PFZ

BIRD · 01-22-2005, 10:17 PM

I have a 2004 Disco SE with 14,300 on the odometer. When I first put on the cruse control. I get a 5 MPH surge then after a few moments. It slows down to the origanl speed. I think I will have to look under my hood to see what I can find.

01-20-2005, 08:16 AM	#1 (permalink)
hermanpj Senior Member Join Date: Jan 2005 Location: Plano (Dallas) Posts: 357 Gallery: 4	Surging with Cruise Control On My 03 Discovery surges ahead and slows down (and repeats this cycle without end) when using cruise control. It can make one physically ill. Has anyone encountered this and know what to do to either resolve it or at least lessen the severity? I brought it to the dealer who told me 'yeah, the cruise control never was very good in these cars. we'll try to tune it, but don't expect much improvment.' it didn't improve at all. any help? __________________ Pat Herman

01-21-2005, 10:51 AM	#4 (permalink)
hermanpj Senior Member Join Date: Jan 2005 Location: Plano (Dallas) Posts: 357 Gallery: 4	thanks gents. will check out the hoses and fittings. __________________ Pat Herman

01-22-2005, 10:17 PM	#6 (permalink)
BIRD Senior Member Join Date: Dec 2004 Location: Honolulu Hawaii Posts: 362 Gallery: 0	same problem here I have a 2004 Disco SE with 14,300 on the odometer. When I first put on the cruse control. I get a 5 MPH surge then after a few moments. It slows down to the origanl speed. I think I will have to look under my hood to see what I can find.

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01-20-2005, 08:50 AM	#2 (permalink)
Disco Mike Moderator Join Date: Aug 2004 Location: Parker, Colorado Posts: 5,327 Gallery: 0	If I were you I would call the local Rover zone office and let them know what the service dept told you, Rover won't like that. Usually when that happens there is either a vacuum leak or a bad control unit, and no it is not normal, they are so full of S--t. Mike J.

01-20-2005, 09:15 AM	#3 (permalink)
TerryS Moderator Join Date: Aug 2004 Location: Bloomfield, CT If I died today, I lived there all my life. Posts: 2,151 Gallery: 0	I agree with Mike. I'd look at the hoses for a crack at a fitting. My 97 Disco (other than my wife's Freelander, the only one with CC) is rock steady at whatever speed I set it at.

01-21-2005, 12:02 PM	#5 (permalink)
pzwerner Member Join Date: Jan 2005 Posts: 39 Gallery: 0	I just fixed thCC on my "98 LSE. There was a split at the "T" on the line going to the pump. Hope this helps ... PFZ

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