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service engine soon light

frankenstinesy

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i was going to my car after class and it started up kinda funny. i didn't think anything of if. but when i put the car into gear i noticed that the ses light was on :angry: on the drive home whenever i'd accelerate it kinda felt like my car was pulsating a little bit. it felt like this when i was at idle too. but when i was going a constant speed i didn't notice the pulsing. my a/f ratio gauge was going extremely fast too, faster than normal. when i got home i popped the hood and it seemed like the engine was shaking a little too much for just being in park. i drive a 99 gt with approx 65k miles. do you think this could be a misfire? me and a buddy of mine recently changed the plugs and wires, but that was around november/december. thanks in advance for the help.
 

98 TGP TOY

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Definitely could be a misfire. Make sure all the wires are seated fully on the plugs. If they are, then you need to pull the plugs and check them out. If you have access to a scanner, you should check the code, and scan for misfires..
 

CoolGTX

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what plugs? do they have a screw on tip? if so, thats one problemO

make sure any wires didnt get burned

did you use dielectric grease? should have!
use it on BOTH ends!
 

frankenstinesy

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the plugs are the ngk iridium IX. yes they have the screw in tip. i used the silicone grease that came with, and i put it on both ends. and i'm pretty sure none of the wires are burnt. but i'll take a look in a bit. is it bad if i drive with it like this?
 

CoolGTX

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make sure none of the screw on caps didnt come loose...tends to happen. If so, screw them on tight, and kind of crimp them with plyers or something(sqwish it a little)

HTHs
 

frankenstinesy

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i'm gonna take it in to the shop tomorrow i think and have them look at it. i just looked at it and none of them seemed to be loose
 

frankenstinesy

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the mechanic says that it prolly the fuel injectors, but they have to run some tests tomorrow. and i guess it could cost approx $600. i'm thinking that's way too high. my dad knows the guy so i don't know why it's this much, i mean i don't think he'd rip us off since we know him. i saw on zzp that they have a set of 6 for $125. would there be soo much labor that it would make it so expensive?
 

starrGTP

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Originally posted by frankenstinesy@Feb 10 2005, 06:48 PM
the mechanic says that it prolly the fuel injectors, but they have to run some tests tomorrow. and i guess it could cost approx $600. i'm thinking that's way too high. my dad knows the guy so i don't know why it's this much, i mean i don't think he'd rip us off since we know him. i saw on zzp that they have a set of 6 for $125. would there be soo much labor that it would make it so expensive?
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I'm guessing it is your plug wires. Same thing happend to both Fish and I after removing the plug wires for a manifold change. When a mechanic tells you he has to run some tests...that is code for lube it up to bend you over.
 

Fish

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Originally posted by frankenstinesy@Feb 9 2005, 01:43 PM
i was going to my car after class and it started up kinda funny. i didn't think anything of if. but when i put the car into gear i noticed that the ses light was on :angry: on the drive home whenever i'd accelerate it kinda felt like my car was pulsating a little bit. it felt like this when i was at idle too. but when i was going a constant speed i didn't notice the pulsing. my a/f ratio gauge was going extremely fast too, faster than normal. when i got home i popped the hood and it seemed like the engine was shaking a little too much for just being in park. i drive a 99 gt with approx 65k miles. do you think this could be a misfire? me and a buddy of mine recently changed the plugs and wires, but that was around november/december. thanks in advance for the help.
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Check all the wires to make sure they are secure since you did them a month or 2 ago. Ive went 3 weeks after a plug change and one of the wires came loose. It should be easy to find. Just pull on all the wires with your pinky and see if they come out.

Also, his tests are gonna consist of taking the injectors out and flow testing them. Caspers can do that cheaper. Plus if it is an injector, you can order them and change them out for cheaper.
 

frankenstinesy

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yeah i checked the wires before i took it in, and they all seemed to be on there pretty good. i didn't pull too hard but prolly hard enough to come off if it was lose. i don't know how to change out fuel injectors, i'm not that knowledgeable about cars, but i have a feeling when i am being ripped off. i guess the shop is gonna try to "flush" them out and see if that fixes it. but if it doesn't and they try to charge me $600 i'll tell them thanks but no thanks.
 

Fish

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If all they are gonna just flush them, just get some injector cleaner that you can pour in your gas tank. Do it that way.
 

zeez gtp

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go to autozone and find out what code you threw when the ses light came on. that will help out alot and probably save you tons of money
 

frankenstinesy

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that's an idea, but right now it's at the mechanic's shop so i can't really do anything with it for now.
 

zeez gtp

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just be careful. my car felt like crap for awhile and i did not know what was wrong with it. i never set a ses light. i took it to this mechanic place by my house and they charged me like 85 bucks to clean the injectors. the cheap way. and it ended up just being a spark plug wire was bad.
 

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