oil pressure gauage drops to 0
Moderators:MarkX, mike020150
hi,can anybody help me,im a new member with a 1999 xkr when engine gets to hot and i stop in traffic oil press.gauage drops to 0 and red warning +message appears.as soon as i pull away it returns to normal.I know people will scream stop engine but ive left engine running for 30 mins hot with no oil press.reading and car still runs great i dont think its an engine problem at all.this car has a new engine,oil pump and oil pres. switch its driving me mad. any help would be fantastic.
Re: oil pressure gauage drops to 0
Hi ,
First job is to check the actual oil pressure with a mechanical oil pressure gauge , if all is then well it must be an electrical problem , if you have really low oil pressure on an otherwise good engine I'd check the pressure relief valve is not sticking open ,
Hope this is helpful ,
Nik
First job is to check the actual oil pressure with a mechanical oil pressure gauge , if all is then well it must be an electrical problem , if you have really low oil pressure on an otherwise good engine I'd check the pressure relief valve is not sticking open ,
Hope this is helpful ,
Nik
Antigua Blue XK8 Coupe.....1998.75 MY.....Reg No ..N1XKO
Re: oil pressure gauage drops to 0
Duff oil pressure senders are not unknown.
Substitution of a new unit may also give an indication of a lubrication pressure problem whether is be a s Nik suggests a stuck or badly seating relief valve or perhaps an issue with the oil pick up pipe.
The later 4.2 had an improved oil pick up pipe which helps.
One other point comes to mind. The 4 litre cars fitted with the earlier design of pipe, really do need to have their oil levels kept up. Failure to do so often leads to oil starvation of the No 1 main crank bearing if the car is cornered hard.
In the event of main bearings being worn, Racing Green can supply oversize bearing sets to enable a crank to be reground. The contact is Colin Bowler at RG. Jaguar do not supply oversize bearing sets which has in the past lead to owners having to buy a complete new crank and appropriate bearing set.
Mike K
Substitution of a new unit may also give an indication of a lubrication pressure problem whether is be a s Nik suggests a stuck or badly seating relief valve or perhaps an issue with the oil pick up pipe.
The later 4.2 had an improved oil pick up pipe which helps.
One other point comes to mind. The 4 litre cars fitted with the earlier design of pipe, really do need to have their oil levels kept up. Failure to do so often leads to oil starvation of the No 1 main crank bearing if the car is cornered hard.
In the event of main bearings being worn, Racing Green can supply oversize bearing sets to enable a crank to be reground. The contact is Colin Bowler at RG. Jaguar do not supply oversize bearing sets which has in the past lead to owners having to buy a complete new crank and appropriate bearing set.
Mike K
X350 Co-ordinator
2004 XJR
2004 XJR
Re: oil pressure gauage drops to 0
The 'gauge' is only an indicator as the sender is a switch does not relay the oil pressure!
I seem to remember someone was looking into making the gauge do a proper job & indicate the actual pressure but I've heard no more.
Allan Jones
I seem to remember someone was looking into making the gauge do a proper job & indicate the actual pressure but I've heard no more.
Allan Jones
XK8 Registrar
2016 F-Type British Design Edition AWD; 1972 650 Triton
2016 F-Type British Design Edition AWD; 1972 650 Triton
Re: oil pressure gauage drops to 0
Hi, again thank you all for your kind help.I will try all your tips and let you know.Im quite new to all this computer stuff so forgive me if dont get it all right.also bad at spelling.thanks again
TREV.
TREV.
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