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07 ve sv6 rough idle low oil pressure

Lisa_97_

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Hi guys!
Ive got an 07 ve sv6, when it starts on cold the oil pressure is low, engine rattles and idles very rough, revs go up and down, sounds like a tractor.
Has started losing power when driven, ans starting to shudder and idle rough in neutral.
Any ideas on what this could be?
Thanks in advance :)
 

Fu Manchu

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•Low engine oil?
-Top up to correct level on dipstick

•Incorrect engine oil?
-Use 5w-30 Fully Synthetic

•Dirty oil filter?
-Replace with known brand oil filter.

•Vacuum leak?
-squirt soapy water around vacuum hose joins. Will bubble a little if there’s a leak. Look for cracked vacuum hoses.

•Blocked pcv on drivers side valve cover?
-Remove Pcv pipe, spray throttle body cleaner in, use a pipe cleaner in the hole soaked with throttle body cleaner (it’s in the manual for those wondering)

•Sludged up motor having blocked oil galleries?
-Start a series of engine flushes and changes and hope for the best. Change oil every 5000 regardless of what Holden suggest

•Dirty MAF sensor?
-Clean it with MAF cleaner.

•Dirty air filter?
-Replace with new one.

•Dirty throttle body?
-Use throttle body cleaner. (Remove from car to do it properly.)

•Old spark plugs?
-Change plugs with ngk or ac delco iridium. (Gap them correctly.)

•Faulty oil pressure sensor?
-Replace $30 and 15mins to do.
 
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greenacc

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Hi, how is the oil level and has it got the right oil in it? The low oil pressure could mean low oil, wrong oil, blocked oil pickup, or sludged engine. Hope it's not that!
 

Lisa_97_

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Hi, how is the oil level and has it got the right oil in it? The low oil pressure could mean low oil, wrong oil, blocked oil pickup, or sludged engine. Hope it's not that!
Hi the car has just had a service, so new plugs, oil has been changed, I made the mechanic check the pickup and empty it aswel, and it's still doing the Same thing
 

greenacc

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Hi the car has just had a service, so new plugs, oil has been changed, I made the mechanic check the pickup and empty it aswel, and it's still doing the Same thing
How did he empty the pickup, I never heard that before. What grade oil is on the invoice?
 

vywgn

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I'd say with the mechanic did the plugs, the inlet manifold would have came off and he may have damaged a vacuum hose
 

Fu Manchu

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Or damaged the manifold gasket.
 
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