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Venture Engines

26 messages,  Last post on Jan 05, 2009 at 3:26 PM

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What is this discussion about? Chevrolet Venture, Pontiac Montana, Oldsmobile Silhouette, Van

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#17 of 26 engine stuters and die when oil fill cap is removed by ckmoore Dec 02, 2008 (3:40 pm)
this is a 2000 venture i am thinking of buying the owners have said the last time they drove it it over heated.does anybody know why when taking off the oil fill cap the engine stutters and dies Replies to this message: russ23 (Dec 09, 2008 6:04 pm)
#18 of 26 Oil pressure light and lack of power by davis911s Dec 09, 2008 (1:42 pm)
Ok here is my situation    1998 Chev Venture 160,000 km    The other night we had a big snowfall (not sure if that matters) I drove home in this and parked the car out front of my house. No problems.    The next morning I go to start the van, startss running real rough, the check engine light flashes and the oil PRESSURE light comes on. I drive it back to my house (about 200 feet) and the bus idles real bad for about 30 seconds then dies. Oil level is good.    I started the van this morning and drove it around back and into my garage, ran like HELL and lights still on. I know it wasn't the best to drive it but I need it in my garage not on the street.    It sounds like an oil pump but man there was no warning, do pumps just GO or do they usually give a warning?    How can I test the pump? Is there anything electrical that it can be? I was thinking something got disconnected or wet or something during the drive in the snow?? Sounds unlikely but one never knows    What about the timing belt? I have never changed that, if it jumped timimg would it cause these symptoms?    Thanks I will run a scan on it tonight and let you know the results.    Shawn
#19 of 26 CODES by davis911s Dec 09, 2008 (3:00 pm)
Ok I scanned the van   I got P0172 and P0300 codes. I then erased the codes and started the van for about 30 seconds and kept it running (gave gas)   The only code that came back was the P0300   What can be causing this? Replies to this message: davis911s (Dec 19, 2008 1:48 pm) 442dude (Jan 04, 2009 8:05 am) russ23 (Jan 04, 2009 12:24 pm)
#20 of 26 Re: engine stuters and die when oil fill cap is removed [ckmoore] by russ23 Dec 09, 2008 (6:04 pm)
Replying to: ckmoore (Dec 02, 2008 3:40 pm) 1. Overheating on this is usually blown cylinder head gasket or the intake manifold. Many of us believe it is the Dexcool anti-freeze. It turns to brown mud (check the radiator cap and inside the opening it will usually be brown mud. The mud is acid that eats the gaskets. Google Dexcool problems and see for yourself, it resulted in class action lawsuit in California.   2. Cost to fix on a 2000 probably exceeds value of vehicle. If you go for the repair, you need to add in new radiator since the Dexcool clogs that up as well.   3. My advice to you is RUN, do not buy unless you have capability to repair yourself. I had same problem and landed up changing engines myself. If you decide to go that direction let me know, I have written a how to guide to assist.   4. As far as having problems related to the oil filler cap, that is one on me. Something else transpired like knocking the PCV valve out of the rocker cover.   Good Luck Lloyd Ballard Sequim, WA lloydballardhotmail.com
#21 of 26 Re: CODES [davis911s] by davis911s Dec 19, 2008 (1:48 pm)
Replying to: davis911s (Dec 09, 2008 3:00 pm) Ok I have changed all the plugs (the back ones are a pain in the butt) Changed EGR Valve Changed fuel filter   Still same symptoms it starts and runs real rough then dies   What is next step? Replies to this message: 442dude (Jan 04, 2009 8:05 am) russ23 (Jan 04, 2009 12:24 pm)
#22 of 26 heating and cooling by caperguy4u Jan 04, 2009 (5:18 am)
I have a 1997 venture that is heating up on the gauge and sometimes breaks loose and i will get some heat coming out of the heat vents but most times just cold air. I had the thermostat replaced along with heat sensor and radiator flushed. No sign of water in oil and no white smike from exhaust. Replies to this message: rkarch (Jan 05, 2009 10:04 am) russ23 (Jan 05, 2009 3:26 pm)
#23 of 26 Re: CODES [davis911s] by 442dude Jan 04, 2009 (8:05 am)
Replying to: davis911s (Dec 19, 2008 1:48 pm) PO172 is engine running too rich   PO300 is random misfires detected.   Sounds like a bad ignition control module to me or fuel system issue (injector or system pressure)   I would start by checking those 2 areas in that order   Good Luck...
#24 of 26 Re: CODES [davis911s] by russ23 Jan 04, 2009 (12:24 pm)
Replying to: davis911s (Dec 19, 2008 1:48 pm) Troubleshooting the Venture engine is not simple a matter of changing a few components. The factory service manual is several hundred pages long and tough to read. I would first suspect a blown intake manifold gasket or cylinder head gasket(s). If you have oil pressure problems, loss of coolant, and/or overheating that is where I would go before the computer system. I landed up changing out my engine with a junkyard engine. Runs fine now. If you need more email me direct: lloydballardhotmail.com.
#25 of 26 Re: heating and cooling [caperguy4u] by rkarch Jan 05, 2009 (10:04 am)
Replying to: caperguy4u (Jan 04, 2009 5:18 am) Had the same problem. Ended up being a head gasket. Lots of money to fix. I used STEEL SEAL cost me $80.00 and it is still working 2 months later. I average about 400 miles per week on my 2000 Venture. I had no signs of water in coolent or blowing smoke just constant high pressure in cooling system. Hope this helps. Replies to this message: russ23 (Jan 05, 2009 3:26 pm)
#26 of 26 Re: heating and cooling [rkarch] by russ23 Jan 05, 2009 (3:26 pm)
Replying to: rkarch (Jan 05, 2009 10:04 am) Could you clarify your symptoms? Think you meant to say no oil in coolant or vise versa? Also what do you mean by high pressure in cooling system? I think you mean the coolant was boiling over? I am tucking your suggestion to use Steel Seal away incase my engine acts up again. It appears to have a small leak that may be triggering a check engine light for a catylatic converter problem.

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