hesitation

[easymoney]

hi i got a 1997 4 door gtp and im have some hesitation problems only on take off im hearing a slight popping noise in the intake and i have changed the wires and the tp and the map and check the map and iac and air intake sensor and all the sudden im having a power lag hesitation on take off once its going down the road its got power and getting awesome gas milage and idling ok just this problem on taking off it does it bad some times but sometimes its barrely noticable and i dont have money to keep throwing parts at it and any advise or thoughts would me great thanks

 

[ctracer]

you said you changed the wires, but did you change the spark plugs? how many miles and when was the last tune up?

 

[GTX]

Plugs and/or coil pack(s).....is there a check engine light?

 

[easymoney]

i last tune up was around may when i got the car and i havent changed the plugs what plugs should i run and no check engine light amd the car has like 233,000 but i dont know if the motor has that milage because the pervise owner said it had a rebuild the snout on the sc is new so im not really sure

 

[Scottydoggs]

if your all stock, just get a set of iridium plugs.

dont get platinum or anything fancy.

snout rebuilt, thats not the engine, i bet he had the coupler changed.

 

[GTX]

I stick with AC DELCO platinum plugs....that's me though....and platinum isn't "fancy" it's what's recommended for the 3800 sc

 

[Scottydoggs]

I stick with AC DELCO platinum plugs....that's me though....and platinum isn't "fancy" it's what's recommended for the 3800 sc

that is where you would be 100% wrong. plats do not come stock, and are not recommended. the rest of the choir will chime is soon enough.


to the OP do not get platinum plugs.

 

[FordMan77]

OP Read this and be learned...

4) Spark Plugs - Change out those stock spark plugs with new ones to restore any lost power. Brands that most tend to go with are either Copper Core Autolites or NGK Spark Plugs. Get these at your local auto parts store also. They range as follows in order from hottest to coldest plugs...remember...you want the hottest spark possible...so running a super cold plug on a larger pulley to combat knock isn't the best plan...ACD's, AL606's, and AL605's are basically for stock cars or very small bolt ons still running the stock S/C Pulley or modded N/A guys...you want to keep a hot spark. NGKTR55/AL104's for your 3.4" Setup, TR6's are a tad cooler...best used around the 3.25" pulley area, and AL103's...are for the extreme supercharged application...3.0" pulley or lower. Here is a picture to reference the firing order and the correct coil number if yours aren't numbered or you just need a quick reference picture: http://i33.photobucket.com/albums/d6.../plugwires.jpg

AC Delco Factory Replacements: Stock
Autolite 606: Stock
Autolite 605: 1 Heat Range Cooler
NGK TR55: 1 Heat Range Cooler
Autolite 104: 2 Heat Ranges Cooler
NGK TR6: 2 Heat Ranges Cooler
Autolite 103: 3 Heat Rangles Cooler

5) Spark Plug Wires - If you need some new wires, opt for the stock Lifetime Warranty Auto Parts store brand from your local auto parts store, but if you want to upgrade and need new wires now is a great time. Coil Packs, leave the stock ones...don't waste your money on MSD's as they are actually proven to fail within a years time and put out LESS spark than stock units. Companies that offer aftermarket plug wires are MSD Ignition, Taylor Wires, and PRJ Performance. All ranging from 8mm to 10.4mm monster wires. Cost: $60-$120

 

[easymoney]

ok i just put a set of iridium plugs in and it help a little but i had my coils tested and they were all at minium valves. would that be the last peace of the puzzle bad coils becuase the hesitation is very little

 

[GTX]

So your really telling me GM does not recommend AC DELCO platinum plugs...hilarious...

 

[GTX]

Ps **** autolites

 

[GTX]

Clerly it's a coil..the question is which one...hopefully he can get a scanner with a misfire counter..or just replace all 3