F355 oil pressure issues
Discussion
Ok, so the 355 is being a tempremental old girl again!
On Sunday after the car had been driven hard (not on public roads), the oil was hotter than normal road use, the oil pressure dropped a lot when I then slowed down, and when the car returned to tickover the warning light came on for a second or 2, then back off, but I turned the engine straight off anyway, and decided to get the car recovered home to be on the safe side.
When I got the car home I had to start her up to put her into the garage, and the oil pressure was normal for a cold engine (about the 70 mark).
The following day I tried it again and yet again, it was at the 70 mark, so I decided that the following day I would drive it to where I get it serviced, about 10 miles away.
So the following morning I come and get in the car, fire it up, and the oil pressure is now only half what it had been the previous 2 times, and it was shifting about a bit. So I decided to turn it off and leave it where it was to play safe again.
Anyone ever had an issue like this before? Any ideas what could be wrong with it? What things should I check before getting the engine ripped apart and rebuilt?
On Sunday after the car had been driven hard (not on public roads), the oil was hotter than normal road use, the oil pressure dropped a lot when I then slowed down, and when the car returned to tickover the warning light came on for a second or 2, then back off, but I turned the engine straight off anyway, and decided to get the car recovered home to be on the safe side.
When I got the car home I had to start her up to put her into the garage, and the oil pressure was normal for a cold engine (about the 70 mark).
The following day I tried it again and yet again, it was at the 70 mark, so I decided that the following day I would drive it to where I get it serviced, about 10 miles away.
So the following morning I come and get in the car, fire it up, and the oil pressure is now only half what it had been the previous 2 times, and it was shifting about a bit. So I decided to turn it off and leave it where it was to play safe again.
Anyone ever had an issue like this before? Any ideas what could be wrong with it? What things should I check before getting the engine ripped apart and rebuilt?
The very first thing you should do is ensure your oil pressure sender is not faulty. As this seems to be an intermittant issue, it might be an idea to remove the sender totally, insert a oil pressure gauge, and over the course of a week or two, continue to start up, switch off, rev up and record your results, thus eleminating the oil pressure sender
VML
VML
Having the light come on intermittently at idle when the oil is very hot is quite normal as is the 70psi cold idle/ running (prv is set to around 70 in any event).
Your second problem of fluctuating and lower than normal readings sounds like a faulty sensor or bad connection, definitely worth checking this first
Your second problem of fluctuating and lower than normal readings sounds like a faulty sensor or bad connection, definitely worth checking this first
Cheers for the prompt replies chaps! Hopefully it is just the sender unit and the fact the oil was very hot then.
Are there any known problems that can cause low oil pressure on the 355... I know I'm probably worrying too much, but dont want to risk anything that might result in a costly rebuild?
Are there any known problems that can cause low oil pressure on the 355... I know I'm probably worrying too much, but dont want to risk anything that might result in a costly rebuild?
This is worth reading matey.
http://ferrarichat.com/forum/showthread.php?t=5554...
I really wouldn't panic - the engines are very strong and if the guides are starting to go I don't think it would cause catastrophic engine damage over night.
You could tie up replacing the guides with an engine out cambelt service which in the grand scheme of running a car like that isn't going to cost the earth.
Sleep well and don't panic!!!
http://ferrarichat.com/forum/showthread.php?t=5554...
I really wouldn't panic - the engines are very strong and if the guides are starting to go I don't think it would cause catastrophic engine damage over night.
You could tie up replacing the guides with an engine out cambelt service which in the grand scheme of running a car like that isn't going to cost the earth.
Sleep well and don't panic!!!
Cheers for the link, puts me at ease a bit.
By smoking, do you mean all the time, as I've had the occaisional bit when starting from cold and usually when its been started up for just a few minutes at a time for moving it in and out of the garage, then after a few times of that I'll get a bit on start-up.
By smoking, do you mean all the time, as I've had the occaisional bit when starting from cold and usually when its been started up for just a few minutes at a time for moving it in and out of the garage, then after a few times of that I'll get a bit on start-up.
Edited by Jonty355 on Thursday 16th June 12:45
Jonty355 said:
Cheers for the link, puts me at ease a bit.
By smoking, do you mean all the time, as I've had the occaisional bit when starting from cold and usually when its been started up for just a few minutes at a time for moving it in and out of the garage, then after a few times of that I'll get a bit on start-up.
Thats called condensation mate.By smoking, do you mean all the time, as I've had the occaisional bit when starting from cold and usually when its been started up for just a few minutes at a time for moving it in and out of the garage, then after a few times of that I'll get a bit on start-up.
Edited by Jonty355 on Thursday 16th June 12:45
Get the car diagnosed at a garage before you get a stomach ulcer.
:-)
Jonty355 said:
Will do, cheers for the advice! Cant help but worry about the thing though!
Do you really think a 355 is for you with your paranoid concerns!! Perhaps a Skoda or Toyota (oh no they get lots of recalls) is for you. I just have this vision of every time you start it up, panic sets in!!! 
Far from it, most of the time I treat it like a normal car, but when something does go wrong that could potentially cost megabucks, then I worry! If my valves are shagged then its a full engine strip down!
If I worried about it that much, I wouldn't have been driving it like I did last Sunday! At least I found the limits of the car though.... either that or ran out of talent!!! Either way, I spun it!
If I worried about it that much, I wouldn't have been driving it like I did last Sunday! At least I found the limits of the car though.... either that or ran out of talent!!! Either way, I spun it!
Jonty355 said:
Far from it, most of the time I treat it like a normal car, but when something does go wrong that could potentially cost megabucks, then I worry! If my valves are shagged then its a full engine strip down!
If I worried about it that much, I wouldn't have been driving it like I did last Sunday! At least I found the limits of the car though.... either that or ran out of talent!!! Either way, I spun it!
Glad you enjoyed it at the weekend. At least you reached the limits safely. Hope the oil issue is just a "cheap" sender. If I worried about it that much, I wouldn't have been driving it like I did last Sunday! At least I found the limits of the car though.... either that or ran out of talent!!! Either way, I spun it!
iandc said:
Glad you enjoyed it at the weekend. At least you reached the limits safely. Hope the oil issue is just a "cheap" sender.
Yeah really enjoyed it, and was a definitel learning curve. Turns out my 'hairdressers' spider 355 is a bit soft on the rear! So goes light on the back end when turning in a bit hot, and it just whippped me round into a 360 degree spin!On the plus side it made for some amazing drifts out of corners when it pissed it down with rain! Nothing like the buzz of giving a Ferrari some quick opposite lock! Marvellous!
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