xk8 starting problem
#1
05-22-2014, 03:26 AM
xk8 starting problem
Hi there folks,
I guess there could be a lot of answers to this problem through the forum, but Im a newbie and I need some help pretty quick.
I bought a yr 2000 xk8 a few weeks back.
An issue has developed where occasionally upon starting (predominantly from cold) the car fires up but within 5 secs or so of running its starts to run very rough and stalls with warning lighe stating the obvious "stalled"
Seems to stall if regardless of feathering the throttle or not.
I manage to get it restarted pretty quickly with foot to floor to cut out the fuel, then upon catching I feather throttle, car runs very rough (incl white/grey smoke clouds and stink of fuel) and it then settles in under a minute and car is fine for journey.
Doesnt happen every time but maybe 1 in 10/15 times of starting when cold.
On the occasions where it doesnt happen, car starts fine with a perfect idle.
My background with cars is based on onld rwd fords etc so Im not too clued up on the high tech stuff. Im guessing that I need to look at the following...
- Clean maf
- Clean throttle body butterfly
- Thinking crank sensor (but surely this would give problems through journey and not just from cold)
- Injector clean ( but car runs perfect when warm)
- Idle air control valve clean
- Intake duct check for holes, tears etc
- O2 sensor??
Need some experienced advice ...please..
Thanks,
Mike
I guess there could be a lot of answers to this problem through the forum, but Im a newbie and I need some help pretty quick.
I bought a yr 2000 xk8 a few weeks back.
An issue has developed where occasionally upon starting (predominantly from cold) the car fires up but within 5 secs or so of running its starts to run very rough and stalls with warning lighe stating the obvious "stalled"
Seems to stall if regardless of feathering the throttle or not.
I manage to get it restarted pretty quickly with foot to floor to cut out the fuel, then upon catching I feather throttle, car runs very rough (incl white/grey smoke clouds and stink of fuel) and it then settles in under a minute and car is fine for journey.
Doesnt happen every time but maybe 1 in 10/15 times of starting when cold.
On the occasions where it doesnt happen, car starts fine with a perfect idle.
My background with cars is based on onld rwd fords etc so Im not too clued up on the high tech stuff. Im guessing that I need to look at the following...
- Clean maf
- Clean throttle body butterfly
- Thinking crank sensor (but surely this would give problems through journey and not just from cold)
- Injector clean ( but car runs perfect when warm)
- Idle air control valve clean
- Intake duct check for holes, tears etc
- O2 sensor??
Need some experienced advice ...please..
Thanks,
Mike
#2
05-22-2014, 12:56 PM
Welcome to the forum Mike,
As you have already checked for air leaks on the intake duct (splits in the convoluted section is a regular), cleaned the TB and the MAF, it's time to break out the code reader. Intermittent poor starting could be any one of a number of sensors or flakey coils. Checking for stored or pending error codes should narrow the search.
When you get a minute, please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.
Graham
As you have already checked for air leaks on the intake duct (splits in the convoluted section is a regular), cleaned the TB and the MAF, it's time to break out the code reader. Intermittent poor starting could be any one of a number of sensors or flakey coils. Checking for stored or pending error codes should narrow the search.
When you get a minute, please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.
Graham
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