When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
So I was driving my 2011 XKR 70k miles on the highway the other day and got restricted performance mesage and blinking check engine light . Took a exit and stopped on traffic light, then I tried to accelerate and huge white smoke came out from exhaust and rpm were not stable. So I parked the car on a sidewalk, run diagnostics and this came out. that it was misfiring on cylinder 2,4,6,8, Also there was strong gasoline smell, I checked coolant and it was at min level but still there and smelled like burned fluid but it was clear. I tried to start the engine but it was making few knocking noises and wouldn’t start. towed the car to my home garage. Also, when i removed oil cap the oil smelled like gasoline. I'm not sure what to do now… any ideas ? Too add I had water pump replaced 2 months ago. The pulley was lose and making noise but coolant was not leaking at all. is there a easy way to determine if thats blown headgasket, or bad injectors? Thank yoU!
i think you need to check your converters as well.Mine had the same problem with all cylinders misfiring once all because i put 112 racing gas in it that had lead that stopped up the converters.Take notes,never put 112 racing gas in a Jag even tho the gas lid cover says 91+up
Last edited by Barry Leftwich; Dec 29, 2021 at 03:48 AM.
i think you need to check your converters as well.Mine had the same problem with all cylinders misfiring once all because i put 112 racing gas in it that had lead that stopped up the converters.Take notes,never put 112 racing gas in a Jag even tho the gas lid cover says 91+up
Are you referring to catalytic converters?what would be the best way to check it?
I never put anything other premium gas...
Guys, I'm stuck trying to get to 4th cylinder close to firewall, is there a way to get to it with wiring on the way and the black brace that goes under windshield?
any tips from someone that have done this? thank you!
Remove the windscreen wipers, cowl and strut brace.
The wiring loom is secured to the cam cover with tabs. GENTLY prise them down to release the wiring loom from the cam cover and secure it out of the way once the coil units and injectors are unplugged.
Remove the windscreen wipers, cowl and strut brace.
The wiring loom is secured to the cam cover with tabs. GENTLY prise them down to release the wiring loom from the cam cover and secure it out of the way once the coil units and injectors are unplugged.
Is the cowl glued to the windshield? If yes do I need a special glue to glue it back?
After working on this for few days. I managed to replace 4 injectors and 4 spark plugs on drivers side of the engine, What a major PITA, with wire loom getting in the way all the time. It was my first engine work project before I only replaced car stereos and bulbs in cars ....
So car started right away , there were clouds of smoke coming out from exhaust , and slight griding noise from the engine, I had it running in a garage for maybe 1 minute and shut down because of the smoke..... then I scanned the codes, and got no codes no misfire, but there are couple things that worried me in that 1 minute of running the engine,:
the white smoke, I know that when my car broke down it puffed a white smoke, and then it smelled like gas, i noticed gas smell in the OIL ... I wonder if there are still letfovers of old oil in the engine, I extract the old oil using a pump and replaced the oil filter but I'm sure that some of it still was left in the engine..
Slight grinding noise.... not sure if this will go away after some time , or maybe because there was fuel in oil something happened with the inside of the engine...
If your injectors dumped fuel for too long, your catalytic converter is probably saturated. I'd not worry about smoke too much, as long as it goes away. A new cat could possibly still be in the future.
I didn't really hear any grinding though.
Possibly still residual stuff?
Dunno man, don't listen to me. I'm old.
If your injectors dumped fuel for too long, your catalytic converter is probably saturated. I'd not worry about smoke too much, as long as it goes away. A new cat could possibly still be in the future.
I didn't really hear any grinding though.
Possibly still residual stuff?
Dunno man, don't listen to me. I'm old.
Well maybe you're old but you know of what you speak. I didn't hear grinding either. To Cee Jay's point you may have some residual fuel in the Cat. Unburned fuel is a common cause of a failed converter. You asked earlier how you can test it. The simplest way to test the efficiency of a cat is with an infrared thermometer. Point it in front of the CAT and get a reading. Point it at the CAT and get a reading. Point it after the CAT and get a reading. Do the same on the passenger side where you're not having the issue. Thermometer runs about $30. Takes few minutes.
At normal operating temp, the CAT runs 1200 -1600 degrees. Too hot is up around 1800 to 2000 degrees and is a classic sign it's filled with fuel.
The white smoke will burn off after a little while of driving. I had the same issue each time after a stuck injector. It eventually burned off and cleared up. It may be embarassing for a few miles but it should disappear.
Listen to Cee Jay. He may be old (as he says) but he's not demented (yet).
what I picked up on is a noise in left side of engine white smoke heavier on left than right.
whote smoke - can be left over oil etc... My experience is replace the Positive crank case ventilator PCV in case it failed open and is pulling oil in - its cheap and easy to get to.
1. Change pil and filter
2. inspect plug and run a magent through oil look for any metal filings if none good
other than that don't rev the engine if you here a noise - the VVTs need to fill with oil before they are effective.
idle it and monitor to see of the smoke clears up or stays the same - should go away once it warms up about 10 - 15 minutes if not expect its a head gasket issue.
I got a 2009 Cadillac cheap with a small amount of white smoke thought it was because sitting in an auction yard for a year, to find out the head gasket was blown.
that is alot of smoke -
Great work tackling this yourself! Just curious on how the pressure in the fuel lines gets relieved before messing with the rails. Do you just disconnect the fuel pump fuse and crank the engine?
Great work tackling this yourself! Just curious on how the pressure in the fuel lines gets relieved before messing with the rails. Do you just disconnect the fuel pump fuse and crank the engine?
Thank you, it was challenging but not impossible
To be honest I just disconnected the battery before removing the fuel line from the fuel rail, maybe a drop of fuel was there, no pressure at all.
the worst thing was the ignition wire loom; i had to disconnect abot 10 different plugs on front of the engine to gain some slack to move a wire loom away from plugs and injectors...
Great work tackling this yourself! Just curious on how the pressure in the fuel lines gets relieved before messing with the rails. Do you just disconnect the fuel pump fuse and crank the engine?
That, or pull the fuse while the car is running.
Originally Posted by Peterek82
To be honest I just disconnected the battery before removing the fuel line from the fuel rail, maybe a drop of fuel was there, no pressure at all.
You had an injector that was stuck open so you had no pressure.
I don't actually remember if I restarted or not. I believe the first time it happened that I did restart it hoping it was an electronic glitch but it misfired so badly and had so much smoke coming out, that I shut it down immediately and had it picked up by the towing service. As to the cost, I also don't remember, however, my mechanic who services all of my and my family's cars was very reasonable and quick.
I had this happen today, so worried about it. I drove it home with hazards on 5 minutes 2 miles, and now having it towed to garage. Hopefully this didn’t cause more issues. Coolant is still quite full, smell is mostly bbq like smell, but a tonne of white smoke and oil everywhere
I had this happen today, so worried about it. I drove it home with hazards on 5 minutes 2 miles, and now having it towed to garage. Hopefully this didn’t cause more issues. Coolant is still quite full, smell is mostly bbq like smell, but a tonne of white smoke and oil everywhere
Loss of power on motorway high in revs, followed misfire tonne white smoke, bbq smell
Originally Posted by tberg
Cee Jay is right. It's a stuck injector. It has happened to my 2019 5.0L XKR twice. Each time there was an overwhelming smell of raw fuel accompanied by misfiring and a ton of WHITE smoke. Replacement of the injectors on the misfiring bank put everything back in order immediately. Smoke was gone, no misfires, everything back to normal.
had this happen today, so worried about it. I drove it home with hazards on 5 minutes. High in revs lost all power, then tonnes of white smoke, really rough idle, misfires and oil loss and oil is all in the engine bay. Had a cat fault ages ago garage I went too thought because of my low mileage car (it had been sat though) couldn’t be cat and bypassed the sensor reading and didn’t thing anything of it. Then weeks later a VVT intermittent cel for performance of the valve and topped up oil a little too much as seemed to go down since service
where you able to start the car after that happened ? I can’t even start the car it makes 3 knocking sounds and stops. not sure if that is normal or there is more damage to the engine. Also what was the cost to replace all injectors?
did your misfires sound a bit like knocking and did you also get oil spray out everywhere. I had power loss at speed, white (light grey) smoke bellowing out of exhausts, misfires and really rough idle, I was 5 minutes 2 miles from home so out hazards on and got it home. Still no low oil pressure lights and cel is still not flashing. Worried I’ve blown the engine completely
