JuliusF
New member
Hi,
New to the forum, so thanks for taking a look.
I have a March 1998 996 (so one of the early ones), 86K, good nick, full history, had it a couple of months and all seems as well as can be expected.
However, one niggle which is driving me nuts. My driveway slopes down towards the road, not massively, perhaps 1:25. I park the car nose up the slope (usually).
From cold the car starts no problem. Drive it around (okay go for a burn..!) park it up level on the street - no problem, restarts every time. (In fact when its hot it will start on the slope OK for a few minutes....).
BUT let it cool down for about an hour, so not fully back to cold, it is the devils own job to start with much swearing and teasing the throttle until it fires - once started its good as gold again.
Now this is where it gets really cookie - reverse it onto the drive so its pointing nose down the slope, the problem doesn't occur.
So to recap, warm (or hot) engine, parked on the level or nose down the slope, no problem. Warm engine, nose up the slope, poor starting.
Diagnostics shows nothing; even cleared the buffer down, replicated the problem, and interrogated again (at the dealer) - still no clue.
As a precaution we have changed the ICV, the temp sensor, the impulse sensor, and it had a new air mass sensor not long before I bought it - can't think of much else, except perhaps the starter which incidentally can be screechy, but again only when on the slope....(I wonder). However, the starter otherwise seems strong.
Did wonder about the fuel pump/fuel pump relay, but that's venturing into spondooliks I'd rather not spend territory, unless I can be sure it would fix the problem.
The inclined angle somehow plays a part so I'm speculating that if its not electronics, it might be some sort of physical/mechanical problem - is there anything like a non return valve in the fuel flow that could be susceptible I wonder?
Any suggestions or similar experience (and resolution!) much appreciated.
Thanks.
Julian
New to the forum, so thanks for taking a look.
I have a March 1998 996 (so one of the early ones), 86K, good nick, full history, had it a couple of months and all seems as well as can be expected.
However, one niggle which is driving me nuts. My driveway slopes down towards the road, not massively, perhaps 1:25. I park the car nose up the slope (usually).
From cold the car starts no problem. Drive it around (okay go for a burn..!) park it up level on the street - no problem, restarts every time. (In fact when its hot it will start on the slope OK for a few minutes....).
BUT let it cool down for about an hour, so not fully back to cold, it is the devils own job to start with much swearing and teasing the throttle until it fires - once started its good as gold again.
Now this is where it gets really cookie - reverse it onto the drive so its pointing nose down the slope, the problem doesn't occur.
So to recap, warm (or hot) engine, parked on the level or nose down the slope, no problem. Warm engine, nose up the slope, poor starting.
Diagnostics shows nothing; even cleared the buffer down, replicated the problem, and interrogated again (at the dealer) - still no clue.
As a precaution we have changed the ICV, the temp sensor, the impulse sensor, and it had a new air mass sensor not long before I bought it - can't think of much else, except perhaps the starter which incidentally can be screechy, but again only when on the slope....(I wonder). However, the starter otherwise seems strong.
Did wonder about the fuel pump/fuel pump relay, but that's venturing into spondooliks I'd rather not spend territory, unless I can be sure it would fix the problem.
The inclined angle somehow plays a part so I'm speculating that if its not electronics, it might be some sort of physical/mechanical problem - is there anything like a non return valve in the fuel flow that could be susceptible I wonder?
Any suggestions or similar experience (and resolution!) much appreciated.
Thanks.
Julian
