2005 4.3 v6 Chevy motor
#1
2005 4.3 v6 Chevy motor
I have a 2005 Chevy Silverado 4.3l v6 manual transmission truck two wheel drive pretty standard truck anyway when I try to accelerate it spits and sputters going up hill he almost dies out seems like all the power is being gone I can coast around town under 50 km it idles great but dead when accelerating????? I cleaned the intake best I could and there's new plugs and distributor cap clean air filter that's about it I'm stuck any help be great
#3
If your fuel pressure checks out ok, and your symptom is bogging down going up a hill at WOT, I would suspect a clogged exhaust. Possibly clogged cat. Or cat guts broke up and clogged the exhaust after it. A sympton of this would be rattling coming from under your truck when your driving. You could do a back pressure test by using a vacuum gauge (that also shows psi) and rigging up a fixture to put in place of your upstream O2 sensor. At idle pressure shouldn't be much above 1 psi. Snap the throttle a couple of times and check to ensure that the psi doesn't jump up significantly.
Thread
Thread Starter
Forum
Replies
Last Post
quickcurrent
2nd Generation S-series (1995-2005) Tech
5
09-19-2012 02:01 PM
mwindrider1
2nd Generation S-series (1995-2005) Tech
6
04-04-2011 09:15 PM
hobie204
2nd Generation S-series (1995-2005) Tech
3
05-09-2009 01:38 PM