Car losing power then dies
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Car losing power then dies
going down the road. 96 xj6. Car loses power and then dies in mid driving. This is what I have done so far. Changed plugs, air and FUEL filter, removed and cleaned both MAV and throttle body with prpoer cleaners. That helped only the idle. It feels like one of two things. It is losing fuel pressure and it runs OUT OF GAS or maybe a loose wire connection. It does NOT have vacuum leaks. Please help! My wife is about to pay 120 a hour for a jag mech to work on this thing. One more thing. Engine code P1775 is on. Tranny sensor makes a car die?
Joined: Mar 2008
Posts: 2,521
Likes: 71
From: Powell, Ohio U.S.A. 43065
RE: Car losing power then dies
Possible EMS relay fault, RF corner of engine bay
Possible fuel pump fault
" " " relay fault (fusebox in boot)
" " " link lead fault (inside fuel tank)
If I was working on the car, I'd be road testing it with a fuel pressure gauge taped to the windscreen.
If the engine shuts right off, tach drops to zero, and will usually start right back up...suspect EMS relay fault.
Possible fuel pump fault
" " " relay fault (fusebox in boot)
" " " link lead fault (inside fuel tank)
If I was working on the car, I'd be road testing it with a fuel pressure gauge taped to the windscreen.
If the engine shuts right off, tach drops to zero, and will usually start right back up...suspect EMS relay fault.
Joined: Jun 2007
Posts: 2,076
Likes: 40
From: Pompino Beach , FL
RE: Car losing power then dies
2nd the fuel pressure test.. have had several times.. the fuel pressure drops due to the fuel pump relay pin in the ecm connector.. corroded.. remove the passenger kick panel.. then 2 ..8mm bolts.. the ecm comes out.. check the connector pins.. .. also fuel pumps fail as well.. or inner fuel line in the tank from pump starts to come off..
Junior Member
Joined: Jun 2010
Posts: 2
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From: Clearwater
I'm having the same problem with my 2000 XJ8! The first time it happened I took it in. They didn't find anything wrong and it didn't do it again until about three months later. Now I don't know what to do?
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Joined: Mar 2007
Posts: 11,344
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From: Oak Ridge, TN
do you know if they did the same diagnosis testing mentioned in this thread? If not, make sure a mechanic does. Do you have the same code? Those codes lead down many different paths.
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Veteran member
Joined: Mar 2007
Posts: 11,344
Likes: 1,164
From: Oak Ridge, TN
Also, post your symptoms in the XJ8 and XJR section for more assistance. The Gen Tech forum is for stuff that might go across all platforms, model years and models.
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