Hi all !

I owned a 2000 C70 2.4Turbo convertible, but since 1 month, when i start my engine (cold or hot whatever !) it starts but stops immediately after . i have to start it 2 or 3 times before having it started !! :( .

This problem is completely variable, i can start normaly the car during couple of days, and at one moment, it begins faking !! :angry:

can somebody who knows this problem help me?

Thanks for your answers

I would look at the fuel pressure first.
Then look at the throttle body next.
Thne look at the mass flow sensor.

Thank you very much !! i'll try to check out those stuffs !
i'll let you know :thumbsup:

Hi again !

can you tell me if cleaning the throttle body in this C70 is easy, and doesn't need to go to Volvo workshop? and also how can i check out the fuel pressure ? I'm not so good in mecanic ! but i can try if it isn't omplicated ! :D

And can i get the volvo part Number of
-This throtle body
-the mass flow sensor

thanks for answers and advises

Peace out :57:

To check the fuel pressure you will have to buy a fuel pressure guage.
Cleaning the throttle body can be done at home but takes a while.
Sorry I don't have the part #'s there is many different one depending on different things.

Thank you again ! i'll ask another may be stupid question :blush:

Can i have a picture of this throttle body, in order to avoid mistakes? thanks :grin:

I picture or an approximative location of this throttle in the engine compartment can be good too!

I don't have a picture but will explain.
Open the hood and look at the front of the engine.
The throttle body is located under the intake manifold.
There is a plastic hose running from the intercooler to the throttle body.
Follow the big black plastic hose from the radiator area to under the intake manifold.Where it connects to the manifold is the throttle body.
The clamp that holds it on you will need a 7mm socket to get it loose.
There is 4 screws holding the throttle body to the intake manifold.
You may also have to remove the support bracket from the back of the starter to allow you to get the wiring out.
Follow the wiring from the throttle body down and you will see it go behind the starter bracket.That is along as no one has had it apart and left the wiring out.

what do you mean by intake manifold? air filter box (black box?) :blush:

No the intake manifold is the aluminum peice mounted on the front of the engine.The oil dipstick tube is bolted to the intake manifold.

I hope this helps...

:)



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His is a little different he has a 2000 which is electonic and mounted under the intake.

Oh... Sorry then.
:)

Thanks guyz !! i understand the stuff now! i'll try to do something this week end ! that become urgent !! Now i have to start it sytematicaly 3 or 4 times before it goes well ! or if it starts the fisrt time, it stops immediately after 1 second!! :mad2:

I'll let u know guyz ! :)

Thanks again !

hello there buddy,

I know a bit about c70 starting problems and I am telling you know that its going to be a antenna ring problem.it sits around the ignition key and picks up your ignition key code.but they give problems and then the car will fire and start then cut out,go for it dont go near the etm/throttle body .andrew collins texas

AHHH ok !! it can be this problem !!
At volvo they had found the following error code: IMM-321 = INITIALIZING SIGNAL FROM MODULE (area 36). But they want me to change the starting engine control box (ref: 8601360 : 900$ !! )

So how can i told them to check around the antenna ring problem?

and when you say : "it sits around the ignition key....", is it on the key or in the car, near the steering wheel ?

Thank you for your answer ! :thumbsup:

It is mounted around the ignition lock cylinder.

I am hopefully picking up a 98 coupe tomorrow. Does the 1998 C70 Coupe have this special coded key or is it just newer models? I test drove the car but the key was in the ignition the whole time and I did not see it. I hope it is just a normal metal key so I will not have to deal with this problem. If it is a wacky coded key, is this problem very common? Any preventative stuff I can do?

Thanks,

Anthony.

No worries they didn't start it till 1999.
The 98 has an immoblizer but it is very different.

You just made my day, Tech.

Awesome!

I am slowly learning stuff about this car. Hopefully as an owner, I can contribute even more information to this site and its subscribers.

Thanks again,

Anthony.

Hi Tech !

The ignition antenna has been ordered ! and will be mounted wednesday ! i'll let u know if it is the solution of my problem !!!! i HOPE and cross my fingers ! :)

PS: Welcome to you lextildeath and enjoy your future 98 C70 . ! :thumbsup:

have a nice day !! (or night !) here in PARIS it is 08:38 AM :D