lancia thema 8.32

Sounds like you need some SD3 analysis by someone who knows what they are doing.

 

Can you clarify your explanation? Do you mean, if you rev the engine and release the throttle, the RPM drops to idle but then increases again on its own to a higher RPM then drops again to idle a few times before settling at the proper idle RPM?

 

Won't be able to give you much help as I'm not specifically familiar with Thema 8.32. While it does use the same KE3-Jet injection system as the later 328 and Mondial3.2, it has an additional component that the Ferrari models don't have -- an idle air valve (an electrically-controlled valve that fine tunes the amount of air entering the engine at idle). Based on your symptom, ensuring that it is operating properly, or not, would be a logical place to start IMO.

 

Glad that you got it sorted as we need all F engines running well -- especially those used in other marques, and thanks for the feedback. Complexity is both a blessing and a curse -- when it works, it's great, but it's just more stuff to go wrong .

 

Depends much on the ambient temperature. The sensor is in bottom of oil pan and is affected by cold air stream but 40C seems low. What does it show if you idle the engine temp up to 90C ? On mine the oil temp is 80c when water is 90C at idle - but will drop to approx. 60-70C when driving. You could check function of both sensor and instrument if you unplug the sensor lead and earth it directly - it should show max temp on instrument.

 

Did a double check today and on my car oil temp is 75C when water temp is 80C. It was somewhat cold here this morning and water temp seldom rise higher than ca.80C in these conditions.

 

Having difficulty starting when cold needing alote of cranking and when hot omg no chance so changed the fuel accumulator valve that has helped but still need alote cranking and idea would be appreciated also car in very low miles
Andy



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This isn't such a good thing on a car equipped with Bosch CIS over a long time as there are a lot of very small mechanical clearances/fits in the injection system that don't tolerate fuel deposits/debris well.

With regard to the difficulty of hot restarting, you need to measure the fuel pressure after engine shutoff (if it drops to zero quickly that is a problem). In addition to the Accumulator, there are two other things on a KE3-Jet system that need to seal well at engine shutoff to maintain the residual fuel pressure:

1. the check valve at the fuel pump outlet, and

2. a seal inside the fuel pressure regulator.

If the fuel pressure is dropping quickly to zero at engine shutoff, then those are the main suspects IMO. At engine shutoff, the fuel pressure should be about 3.7 bar, and be greater than 3.2 bar after 20 minutes.

PS Shops that service older MB and/or older Volvo should be able to help you make this measurement (if you can't do it yourself) as those marques also use Bosch CIS injection systems.

 

It is in the trunk where your spare tire is. From underneath the car, remove a plastic cover and you'll find it.

Beside that, change the fuel hose inside your fueltank that is attached to your fuelpump. If it has never been replaced there is your problem, they get brittle and will sooner or later always start to leak. Only replace it with submersible hose, otherwise you will have to replace it next year again