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Chevy Venture Care and Maintenance

44 messages,  Last post on Nov 09, 2007 at 8:46 AM

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#15 of 44 Re: Big Problem with my 1997 Astro AWD [lancestro] by alenarcik Sep 21, 2005 (3:47 pm)
Replying to: lancestro (Mar 29, 2002 9:17 am) i also would like to find an answer to this problem - bought an 99 astro 2 years ago and have been tracking the bucking problem for a while now - mind you i had lost a bearing in the rear axle already - so i replaced them all except for the pinion bearing set - but as for the bucking - bare with my weak explanation please - in my opinion it seems like it is engine related - as the car warms up especially on a colder morn. the vechicle runs ok till the operating temp is reached - as far as i can tell during a warm up the computer uses look-up tables for some sensors to establish a running condition (not efficiency - emmisions only) so the vehicle runs ok, but 1ce warmed up the look-up tables go by-by and all sensors are polled - my seems to buck worst during humid/ wet days. As every1 in this predicament, i did replace cables, plugs, coil, dist cap/rotor, even the ignition module - no joy - then i followed up with mass airflow sensor and throttle position sensor and still no joy - but if you are experiencing a similar problem then try this, when the vehicle starts to buck - (my does it mostly when speed is reached and i am trying to maintain constant velocity) slam the throttle to the floor - in wide open throttle the computer again goes to bypass look-up table config, meaning that it will ignore some sensors because it cannot possibly maintain efficiency and pollution ctrl in wide throttle operation and the bucking may suddenly stop for the duration of acceleration. Well at least in my case it does. But the good thing is that i eliminated alot of technical mumbo-jumbo because during a hard acceleration we are using lots of fuel so the pump and filt are ok unless it starts to really bog, the ignition components must be ok unless it is still missing - and missing engine due to a plug, wire, or distributor really becomes evident when a vechicle is placed under load. So whats left ?? well i am stumped - need help, help, please - but from where i sit - awd - i dont think that the problem is in the axle ass. or the front drive shaft assembly. But since we all own an electronic transmission which also feeds the computer with a feed back i wouldn't rule that out. thanx for listening, and by the way - i am not a classed mechanic but am an electronic technologist so i did some research on engine ctrls. Replies to this message: hwy70 (Apr 18, 2006 5:45 pm) avtech (May 23, 2006 5:47 am)
#16 of 44 Re: 99 Venture Chugging [leighanne] by alenarcik Sep 21, 2005 (3:50 pm)
Replying to: leighanne (Sep 07, 2005 10:46 am) check your exhaust - possible plugged converter - plugged muffler if a baffle broke
#17 of 44 gas gage by gore1 Sep 27, 2005 (4:24 am)
the gas gage in my 1997astro van does not read correct. can same one help repair it?please.
#18 of 44 Re: 99 Venture Chugging [leighanne] by bobcat1238 Oct 22, 2005 (7:12 am)
Replying to: leighanne (Sep 07, 2005 10:46 am) Leighanne,    This sounds like what happened to my 1998 Venture. It turned out to be a clogged injector. Venture injectors are very prone to this if you use the wrong brand of gas. Do not use BP gasoline - it may be the worst for this. Marathon gasoline has worked very well. What fixes the problem is to replace the injector which costs about $150 for the part, and start using injector cleaner once a month along with Marathon gas or some brand that will not clog the injectors. My mechanic also tried a special machine to clean all the gunk out of the injectors. This worked for a while but the problem came back. Had to replace the injector and use the right gas for a long term solution. I'd get a mechanic who could figure this out. You may also notice that your gas milage really suffers when this problem happens. It's because that cylinder is not firing a lot of the time. You may also smell gas fumes too. Good luck.
#19 of 44 chevt venture by qtrichard Nov 01, 2005 (12:47 pm)
yr.2000 venture,fuel line rusted,dealer wants 827.00 U S dollars to put in a new one,is this an okay price
#20 of 44 2002 Venture - Thermostat Problem? by savagecanuck Nov 16, 2005 (8:15 pm)
I have a 2002 Venture that may have a heat problem. In the summer, the temperature guage is normally between 1/3 & 1/2. In the winter, the guage is normally between 1/4 & 1/3.   Today was the 1st cold day in the area, around 20F. When the vehicle is up to full running temperature, the guage never got above 1/4 & spent a fair amount of time bouncing a little below 1/4, which it never has before.   Now, before the really cold weather hits, should I change the thermostat? Is this something a simple DIYer could do? Took a quick look & it didn't seem too easy to access it.
#21 of 44 99 chevy venture by tanya3 Dec 06, 2005 (8:55 am)
I just bought a 99 chevy venture van. Im having problems with the liftgate it open when i first got it now 1 week later i cant seem to open it at all. Also the speedometer wont show more then 10 miles an hour. I replaced the speed sensor and still same problem. All other gauges work please help.
#22 of 44 Knock! Knock! by crackchecker Dec 07, 2005 (1:48 pm)
Just creaped past my 3000 mile oil change with the dash light for change oil coming on, when a lifter started to clatter when the engine first starts up. Did a engine flush and then a oil change. I also added a oil detergent to the oil to help reduce the sludge that builds up. Now all gone.   Just a reminder to change you oil with cold weather season comming on I guess. Replies to this message: on_the_road1 (Dec 29, 2005 7:26 pm)
#23 of 44 Bucking at 50-60 Mph after warm up by on_the_road1 Dec 29, 2005 (7:25 pm)
I have a 1997 chevy venture. I just had a tune up done and a fuel injection cleaning service done. It bucks at 50-60mph, The shop told me this will cause the bucking it might be the injections starting to get plug. This is starting to become a real head bannger. It does not do it alot but it does it once in a while. Can someone help me please.   Thanks Happy Holidays to all
#24 of 44 Re: Knock! Knock! [crackchecker] by on_the_road1 Dec 29, 2005 (7:26 pm)
Replying to: crackchecker (Dec 07, 2005 1:48 pm) Thanks for the information. That what happen to my and did a oil change and it stp the knocking. Thanks for the information

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