1996 4.6 idle/stutter problem, please help!
03-24-2012, 12:54 AM
#11
4th Gear Member
Join Date: May 2009
Location: DFW, TX
Posts: 1,925
Ok we will try that tomorrow. Also there is a chattering coming from the valve covers again (passenger side) We changed the timing chain because this happend the first time, the sound never really went away after the timing chain was replaced so ruled that out. the chattering sound, sounds like a couple rocks bouncing around in the valve covers (there's no rocks in the valve cover) This car is just giving us hassle after hassle!
03-24-2012, 12:20 PM
#12
Thread Starter
Join Date: Mar 2012
Location: Missouri
Posts: 9
Yea we changed the tensioners, the chains, the cam gears, the crank gears, the rails. We changed everything. I'll look into the lash adjuster though.
03-24-2012, 07:12 PM
#13
Thread Starter
Join Date: Mar 2012
Location: Missouri
Posts: 9
Ok, so today we got the MAF and Throttle body cleanded, the throttle body was surprisingly dirty. The chattering was the pcv valve on the passenger side valve cover... who would have thought... The hesitation is still there. We tried to get the throttle position sensor off but the screws won't budge and we don't want to strip the screws so we are going to have to find a way to get that off. We are completely stumped as to what is causing this hesitation now. This car seems to be nothing but trouble! On a side note, once you get past like 3k-3.5k rpm there is no hesitation if you stomp on the throttle. On another side note, don't test for throttle hesitation in a 25 mph zone, you will get a speeding ticket, lets add that to the list of problems this car is giving us.
03-24-2012, 07:16 PM
#14
4th Gear Member
Join Date: May 2009
Location: DFW, TX
Posts: 1,925
Ok, so today we got the MAF and Throttle body cleanded, the throttle body was surprisingly dirty. The chattering was the pcv valve on the passenger side valve cover... who would have thought... The hesitation is still there. We tried to get the throttle position sensor off but the screws won't budge and we don't want to strip the screws so we are going to have to find a way to get that off. We are completely stumped as to what is causing this hesitation now. This car seems to be nothing but trouble! On a side note, once you get past like 3k-3.5k rpm there is no hesitation if you stomp on the throttle. On another side note, don't test for throttle hesitation in a 25 mph zone, you will get a speeding ticket, lets add that to the list of problems this car is giving us.
03-24-2012, 07:32 PM
#15
Thread Starter
Join Date: Mar 2012
Location: Missouri
Posts: 9
Yea the pcv valve wasn't secure and was pretty much just flopping around in the little hole on the valve cover. We stopped for today because we were getting frustrated with it after we got the ticket. We will try again tomorrow. Thanks for your replies they have been really helpful.
03-25-2012, 07:02 PM
#16
Thread Starter
Join Date: Mar 2012
Location: Missouri
Posts: 9
Ok we got it fixed! 
Turns out the plugs were gaped too big... It was such a small problem that we completely over looked it until today. We were so mad at ourselves for overlooking this. I want to thank everybody for their help though! A lot of things you guys listed needed to be replaced anyways, such as the fuel filter, and iac sensor. A mod can close this thread now.
Turns out the plugs were gaped too big... It was such a small problem that we completely over looked it until today. We were so mad at ourselves for overlooking this. I want to thank everybody for their help though! A lot of things you guys listed needed to be replaced anyways, such as the fuel filter, and iac sensor. A mod can close this thread now.
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