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[Moya]

Hi folks,

I have Opel Omega 3.2 2002. One month ago, I my car started to suffer a starting problem. When I turn on the switch trying to start the engine, nothing happens (no sound at all) and the car don't start. I changed the battery with a new one (ACDelco) but the same problem is happening. Then, last week I changed the starter itself and the problem is solved partially.

So, now when I try to start the engine, the car starts from the first time except when I leave it for long time (7 hours). If I leave the car or if the car is not started in 7 hours and more and I try to start it, there is sound from the starter but the engine doesn't fire. The car starts after 2-5 tries.

Suggestions please. Somebody told me that this problem is may be cause by the Fuel Pump others told me that it may be caused by sparks.

Thanks

[TheBoy]

Sorry, does the car turn over, just not fire?

[wastedperfection]

Sounds exactly what i had about 3 years ago on my Carlton GSi 3000 , and it turned out to be the fuel pump!!  

[TheBoy]

Sounds exactly what i had about 3 years ago on my Carlton GSi 3000 , and it turned out to be the fuel pump!!  

Fuel pumps normally reliable on Omegas, unlike crank sensors

[Moya]

Thanks all for your replies.

Yes, exactlly. The car start over but it doesn't fire.

Btw, what is the crank sensor? and how much does the fuel pump cost and what is price of crank sensor? Is the starting problem known about Omega?

[Dave-C]

Does the car turn over at the normal speed?  Or is it slow after the 7 hrs...  Thinking battery drain!!!!!

DC

[Moya]

I meant to say that after 7 hours of leaving it turned off.

[Marks DTM Calib]

It sounds very much like a crank sensor.......about £40-50 (E70-80ish)

Easy enough to change and fit.

[Moya]

Hi All,

Something new is happening with me regarding the Starting problem. The problem still occurs after leaving the car (not working) for 7-8 hours. Now, when I start it after the 8 hours, it wouldn't start from first try unless I hit the accelerator twice before turning on the car.

Does this give any indication? Because some friends told me that in this case it would be the fuel pump?

Cheers,
Moya

[TheBoy]

OK, 2 things to try:

Switch ign on, wait 20s then start.  If this works, the fuel rail depressurising - leak, faulty Fuel Pressure Regulator etc


Switch on and crank with throttle to floor for 5s, then off and start normally with no throttle. If this works, leaky injector.

[Moya]

Thanks alot for your reply.

I tried to wait for 20s then I started the car but it didn't work and same thing is hapening. But, after that the car started without doing anything (without cranking with throttle).

I went after that to ACDelco Workshop and they told me that this may probably be cause by spraks plugs. They reommended to change the spark plugs and the fuel filter.

Another important thing, when I bought my car 4 months ago, the engine computer test gave an ignition problem and at that time they told me that you have to change your car spark plugs.

Does this give a clue?

Thanks again

[ffcgary1]

Unlikely to be spark plugs or fuel pump,omegas have a common fault with the crank sensor,does the eml light come on when cranking the engine on the starter???

[TheBoy]

Are you anywhere near me? (May be worth updating your profile with car and location )

[Moya]

Thanks a lot man but my location is too far from you are. I am in Riyadh - Saudi Arabia (Middle East).

Regarding my probolem. Yesterday, I changed the spark plugs and the fuel filter but today morning same thing is happening. My car didn't start from first try.  

I may try to change the crank sensor this week.

Again thanks all for your helpful replies and any new suggestions are welcomed.

[TheBoy]

Thanks a lot man but my location is too far from you are. I am in Riyadh - Saudi Arabia (Middle East).

Regarding my probolem. Yesterday, I changed the spark plugs and the fuel filter but today morning same thing is happening. My car didn't start from first try.  

I may try to change the crank sensor this week.

Again thanks all for your helpful replies and any new suggestions are welcomed.

Yes, a bit far....   ....mind you, I bet you have nice sunny weather, not the floods we are having here in the UK  

Worth changing the crank sensor, but could also be the cpp (Coil Per Plug) units breaking down, this would likely show up on a code reader as misfires...