Idle hanging after plugs wire change 2000 Trans Am
09-01-2016, 11:39 PM
#1
Idle hanging after plugs wire change 2000 Trans Am Mna I've about had it with this car. I just had Taylor wires and NGK TR7IX plugs installed on my 00 Trans Am. Heads cam car with 11.4 compression and 414 RWHP NGK rep was pretty adament about using these plugs over the TR6s they replaced. Plugs gapped at .040 out of the box recommended. Drove the car home yesterday and it was fine.
Today, I start the car up and let it warm and while I was in the house I could hear the idle was causing the exhaust to sound different. Rush out and the idle is hanging at 1100 instead of 900. Shut it off restart back to 900. Drive stop and go for 25 mins and open roads for 20 no issues.
6 hrs later on the way home warm her up street drive and highway drive for 15 no problem. Get off the highway and it starts fluttering when out of gear and at complete stops it's hanging at 1100 again. Street driving for about 15 mins and every stop it's hanging and revving at 1100.
Any help is appreciated. Gonna head back to the shop in the next few days when I get a moment to do so.
Today, I start the car up and let it warm and while I was in the house I could hear the idle was causing the exhaust to sound different. Rush out and the idle is hanging at 1100 instead of 900. Shut it off restart back to 900. Drive stop and go for 25 mins and open roads for 20 no issues.
6 hrs later on the way home warm her up street drive and highway drive for 15 no problem. Get off the highway and it starts fluttering when out of gear and at complete stops it's hanging at 1100 again. Street driving for about 15 mins and every stop it's hanging and revving at 1100.
Any help is appreciated. Gonna head back to the shop in the next few days when I get a moment to do so.
Last edited by hurley711; 09-01-2016 at 11:53 PM.
09-02-2016, 08:12 AM
#2
Quick update. Sitting in the car now letting it warm up to operating temps no hang so far. Going to drive to the mechanics soon. Here is what the NGK tech said on the issue...
The TR7IX is the perfect heat range for your 11:4 compression. Did he gap the plugs? Would you know if he torqued the plug with no anti-seize? Please make sure all the wires on tightly both the plug side and the coil. After the plugs are removed, if they look questionable, please call me.
The TR7IX is the perfect heat range for your 11:4 compression. Did he gap the plugs? Would you know if he torqued the plug with no anti-seize? Please make sure all the wires on tightly both the plug side and the coil. After the plugs are removed, if they look questionable, please call me.
Last edited by hurley711; 09-02-2016 at 08:17 AM.
09-22-2016, 03:39 PM
#5
Hard to believe this changed with just plugs/wires. I wouldn't be surprised if one of those wires isnt broken or partially broken though. Those things are straight up junk unless they have recently changed them. They look like a robust wire but they are frail as hell.
I would take them off and check the resistance on them just for good measure.
Its hard to beat MSD for the money...
I would take them off and check the resistance on them just for good measure.
Its hard to beat MSD for the money...
09-22-2016, 04:50 PM
#6
Hard to believe this changed with just plugs/wires. I wouldn't be surprised if one of those wires isnt broken or partially broken though. Those things are straight up junk unless they have recently changed them. They look like a robust wire but they are frail as hell.
I would take them off and check the resistance on them just
Its hard to beat MSD for the money...
I would take them off and check the resistance on them just
Its hard to beat MSD for the money...
These are brand new Taylor wires. I read reviews on wires and understand some hate Taylor, some hate MSD, it seemed like a personal preference thing on wires. Found equal reviews on all brands. I am taking the car for a long ride Saturday highway street gonna see how it handles and will report back
Last edited by hurley711; 09-22-2016 at 05:03 PM.
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11-21-2016, 07:03 AM
#8
Drove the car several times since last update with no issues. Then today I drove 25 miles street and Highway conditions rowing through all the gears stop and go as well as wide open traffic and here we go again. Same as the last time I hit the highway.
It feels as if the car builds up idling issues the longer it stays in gear. By that I mean this is the 3rd time after a highway ride staying in gear for long periods then coming out that the car wants to surge and then hang at 1100 when coming to a stop. The entire 12 min ride to the highway was fine in and out of gears 1-3 hitting several stop signs and red lights. Immediately after the highway ride and particularly after staying in gear for the last portion makes the car go wild. Does that make any sense? Would an air leak be more consistent? When I parked I waited 5 mins and it hung at 1100 the entire time. Last tune was about 5/6 yrs ago. Thanks in advance for any suggestions.
It feels as if the car builds up idling issues the longer it stays in gear. By that I mean this is the 3rd time after a highway ride staying in gear for long periods then coming out that the car wants to surge and then hang at 1100 when coming to a stop. The entire 12 min ride to the highway was fine in and out of gears 1-3 hitting several stop signs and red lights. Immediately after the highway ride and particularly after staying in gear for the last portion makes the car go wild. Does that make any sense? Would an air leak be more consistent? When I parked I waited 5 mins and it hung at 1100 the entire time. Last tune was about 5/6 yrs ago. Thanks in advance for any suggestions.
11-21-2016, 11:13 AM
#10
Even though I am talking and venting to myself in here I want to keep updating so that maybe this will help someone down the line!
Car was surging at 1700 RPM pulled into Collingdale Performance and had the throttle body cleaned upper part of the LS6 intake sprayed for leaks nothing showed so the IAC sensor was swapped out and so far so good but it's arly. Only had a 20 mile ride after. Going to drive in all kind of conditions in the next few days to see.
Car was surging at 1700 RPM pulled into Collingdale Performance and had the throttle body cleaned upper part of the LS6 intake sprayed for leaks nothing showed so the IAC sensor was swapped out and so far so good but it's arly. Only had a 20 mile ride after. Going to drive in all kind of conditions in the next few days to see.
11-21-2016, 03:50 PM
#12
Drove the car once more since the last post and no issue. The only thing that was consistent with the problem in the last few months was the inconsistency! So while placing a new IAC and resetting alot of things with a plug in computer he had certainly helped today I am cautiously optimistic because it's been hit or miss for awhile now. I am going to continue to pile the miles on in all different conditions including a nice 55 mile round trip tomorrow in all kinds of conditions that started the problems again today. Remember this has been over the course of a few months. The last 2 months have been clean rides to and from work which unfortunately ia only about 3 miles round trip. I will continue to update. IAC was stock and next month will be 17 years old. Might have been the issue all along? 2 months ago it surged and stayed at 1100 RPMs cold warm you name it until I shut it off and restarted it several times. The 1st time this happened was after allowing it to warm up for 5 mins then when I got off of the highway it surged to 1100 everytime I stopped for the last 20 mins of my ride. Today was fine until I exited the highway and it surged and stayed at 1600/1700 . After exiting the car for an hour and restarting it stayed hung at every.....single.....light for 45 mins at 1600 1700 RPMs and I drove it 40 miles to the shop so it would stay that way. After he replaced the part he reset parameters and I drove it to get above 40 50 MPH and came back no problems. Then the 10 mile ride back home no problems.
Last edited by hurley711; 11-21-2016 at 03:59 PM.
11-22-2016, 02:43 PM
#14
I drove today basically the same course all told about 60 miles. All conditions. Car drove and responded great. Settles to 900 RPM pretty quickly. I will keep updating maybe this can help someone else down the line.
