engine oil warning and another couple of questions

[T3rra]

If the sender pegs to 5 without engine on then it fualty sender or wiring round the wrong way. Driving with the oil light on is not good. And car should not be used at all. Well that's the impression I got. Not sure if the oil light is triggered by low oil pressure from the senser, but that what its ment 2 mean

 

[WBray]

just been out and checked. Turn the ignition on and it stays flat,turn the engine on it jump straight to 5.
Though if you turn the engine and ignition off it instantly drops back to the bottom as you would expect but then turn the ignition on again quickly after and it jumps up to 3/4 and slowly drops down, which must show some residual oil pressure in the system rather than it being to low?

 

[T3rra]

Don't sound like the sender is playing up or the wires are switched. Could be the gauge? Or something else

 

[WBray]

I dunno, cant be the sender as thats been replaced, last one we found was shagged anyway one it was removed and bodged. Still not sure on the wires wanted to switch them this weekend to check but ive pulled a muscle in my back so cant get in or under the thing lol. if switching them doesnt work gonna do a check on the wires as best I can and got to pull the dash out again so shall check behind there. if no luck I may just bite the bullet and OPC it.

 

[Sandspider]

Regarding the temp gauge being at the top all the time, are you sure the correct thermostat is in?

An independent garage put the wrong thermostat in mine so it only opened (letting water into the radiator to cool) when the temp gauge was pretty much at the top. The fans were on all the time. The correct thermostat dropped it back down to sit comfortably on the mid line apart from in heavy traffic etc.

 

[T3rra]

Swap the wires but I'm sure they have nothing 2 do with the oil light. Opc prob won't be the best route, unless there some old staff there be a long time sense they worked on these cars, with this problem. Try give Jon a call Jmg. He's very knowable with the 944

 

[WBray]

You can but try.
Cool shall give him a buzz tomorrow and see what he says.
Exeter seem pretty good, according to one of the guys my dad deals with there they have a few 944's in and I believe they still have a member of staff in there which has worked on these a fair bit if not might also try braunton engineering as heard very good things about them and know they have owned and deal with 944s regularly.

 

[944Turbo]

With a good synthetic, mine does sit near 5 but on a hot day with a hot engine it will drop into the 3's, with a cheaper oil in it will run lower pressures. which light exactly is flashing?
Tony

 

[T3rra]

Perssure wise, mine changed with oil. Had 05/30 or something light in when I got it and would get low 3 and 5 once moving again. 15/60 the new mobile oil replacment 10/50 I get low off 4 never more even on some 3 hour journeys

I believe its the light under oil pressure and the ! ? But good point 2 ask

 

[WBray]

ORIGINAL: Sandspider

Regarding the temp gauge being at the top all the time, are you sure the correct thermostat is in?

An independent garage put the wrong thermostat in mine so it only opened (letting water into the radiator to cool) when the temp gauge was pretty much at the top. The fans were on all the time. The correct thermostat dropped it back down to sit comfortably on the mid line apart from in heavy traffic etc.

Possibly the case, though theres nothing in the history about a thermostat change, so might be just that it needs changing?
It needs a new sensor anyway as the old one is corroded so got the incorrect one being swapped in the next few days. If that doesn't make a difference then may looking into the thermostat.

ORIGINAL: 944Turbo

With a good synthetic, mine does sit near 5 but on a hot day with a hot engine it will drop into the 3's, with a cheaper oil in it will run lower pressures. which light exactly is flashing?
Tony

At the minute in her is a Casterol Magnetic part synthetic 10-40. Though it looks pretty dirty for only having been changed in November and done a few 1000 miles.
What oil would you recommend?
The warning light is the one which says engine oil on the water temp and fuel gauge and the big warning light (same one as the handbrake warning).

Cheers,

 

[T3rra]

Engine level, rather the engine pressure light.

Engine level can be tiggered at 3/4 Iv heard. What's the level
On the dip stick? I ran my S on that oil.

Oil change every 6000

 

[WBray]

ORIGINAL: T3rra

Engine level, rather the engine pressure light.

Engine level can be tiggered at 3/4 Iv heard. What's the level
On the dip stick? I ran my S on that oil.

Oil change every 6000

Umm last time I checked I believe it was not far above the 3/4 mark from top on the dipstick, so could simply be this if that can put the light on that early.
Oil change was done about 4k, but im changing it and giving the engine a flush inline with the 24k service as the oil looks minging to me. Just got to wait for the service bit to all arrive now and then get the job done

Shall hobble out to the car tomorrow, check the oil level again and top her up and get my dad to take her for a spin if I still can't get in the thing lol.

Cheers mate.

 

[T3rra]

Tip on 24k serive. Been mind fall off the fuel filter any disturbance can lead 2 needing new hoses which may be out off stock so check part are replaceable, and your spark plug leads may fall 2 bits as well

 

[WBray]

ORIGINAL: T3rra

Tip on 24k serive. Been mind fall off the fuel filter any disturbance can lead 2 needing new hoses which may be out off stock so check part are replaceable, and your spark plug leads may fall 2 bits as well

If this warning light turns out to be just oil level I really will laugh so much worry for nothing.
Probably me being dumb here but what do you mean by fall off the fuel filter any disturbance can lead to needing 2 new hoses? sorry. I won't be doing the fuel filter myself leaving it to dad's mate who's a aircraft engineer and home mechanic (think has quals as well) to do that for me so got to pass it on.
New OEM ignition leads fitted in january so they'l be ok.
Cheers for all the advice though mate really do appreciate it!

 

[T3rra]

Sorry mindful not fall

The hoses twist on them self when un do the filter, which cause them 2 split. Happened 2 me, Porsche where out off stock off the item and so was everywhere but Promax got there last one.

 

[WBray]

ORIGINAL: T3rra

Sorry mindful not fall

The hoses twist on them self when un do the filter, which cause them 2 split. Happened 2 me, Porsche where out off stock off the item and so was everywhere but Promax got there last one.

Hmm not good, how hard would it be to make up a set? Have porsche stopped making them or were they just out of stock at the time you bought them, as otherwise what else could be used if I had this problem?

Cheers

 

[944Turbo]

Pretty sure the level light latches though (or should) so if the level triggers it it stays on until next ignition off/on sequence. Maybe there is some damage to the wiring or sensor, IIRC on the bottom of the sump near the drain plug so vulnerable.
Tony

 

[WBray]

Topped the oil up and the light has gone off [] hopefully it will remain that way!

ORIGINAL: 944Turbo

Pretty sure the level light latches though (or should) so if the level triggers it it stays on until next ignition off/on sequence. Maybe there is some damage to the wiring or sensor, IIRC on the bottom of the sump near the drain plug so vulnerable.
Tony

You are right mate at the bottom near the sump. I was looking at these last night and seen that hopefully it wont be the case as new sensors don't look cheap.

Cheers for the help guys!