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#1 |
Registered Member
Join Date: Nov 2006
Location: Naples FL
Posts: 106
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![]() when i'm in the 50-55 range and i shift into OD and i SLIGHTLY give it gas, it stumbles ever so slightly...its never done this before...it hasnt effected anything else, but its annoying...if i'm goin 50-55 and keep it out of OD(i have a shift kit) and its hovering around 1800-2000rpm it doesnt do this...any ideas guys?
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ZEX ![]() ![]() |
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#2 |
Registered Member
Join Date: Nov 2006
Location: Naples FL
Posts: 106
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![]() need help guys...
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ZEX ![]() ![]() |
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#3 |
Registered Member
Join Date: Apr 2001
Location: Gallatin, Tn
Posts: 1,326
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![]() Fuel filter change. Just for starters....
Honestly I'm not that proficient with Auto's but maybe your convertor is going out....? When was the last tune up?
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#4 |
Registered Member
Join Date: Nov 2006
Location: Naples FL
Posts: 106
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![]() changed the fuel filter, last tune up was at (did it what i got the car)96,000...i'm at 112,900 now...its not doing it as bad as it was before...i think i just had a clogged injector...
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ZEX ![]() ![]() |
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#5 | |
Registered Member
Join Date: May 1999
Posts: 5,246
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![]() Quote:
The issue you're describing could be any number of things including worn ignition system components, fuel system components or even a MAF malfunction. Start with the basics. Does the problem happen when cold or after driving for a while? You indicated the problem only surfaces at low rpms under a slight load so that makes me feel you should take a peek at the easy stuff like distributor cap & rotor, spark plugs, and the spark plug wires. For about the same price as having the injectors cleaned, you can purchase the schraeder value connection kit and a can of real injector cleaner and give you injectors a proper cleaning. |
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#6 |
Registered Member
Join Date: Apr 2001
Location: Gallatin, Tn
Posts: 1,326
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![]() That *ucking Beautiful coupe has 113k miles???!!!!!!!! Wow, it looks amazing Dale!!! Good looking coupe.
Have you tried pulling codes, maybe eliminate a bad sensor or o2 somewhere.....
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#7 |
Registered Member
Join Date: Oct 2007
Posts: 11
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![]() bad wires will cause this and plugs as well, wires may look good but under a load will lose the spark.
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If Tape can't fix it, it ain't broke. |
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#8 | |
Registered Member
Join Date: Nov 2006
Location: Naples FL
Posts: 106
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![]() Quote:
and igniton coil are all "new" and from msd...i'll go by the parts store when i get a chance and get the schraeder valve connector and the cleaner and try that...and yes usmc302, its a respray but the guy did a great job...
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ZEX ![]() ![]() |
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#9 |
Registered Member
Join Date: Apr 2001
Location: Gallatin, Tn
Posts: 1,326
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![]() What's the timing at? Have you switched octanes lately?
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#10 |
Registered Member
Join Date: Nov 2006
Location: Naples FL
Posts: 106
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![]() haha thats one problem...we dont know
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ZEX ![]() ![]() |
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#11 |
Registered Member
Join Date: Apr 2001
Location: Gallatin, Tn
Posts: 1,326
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![]() Every engine is going to want different timing, be sure to set it with the spout out obviously and I would start with 13 degrees advanced and move up 2 degrees after each test run(spout in for run). Once you start pinging, back of the last two degrees and keep it there. Timing will be sensitive to the octane you are using at the time of tuning. If your going to run 89 in the car, then tune it with 89. The higher octane you run, the more timing you can run in the car. Let us know! Good luck.
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#12 |
Registered Member
Join Date: Aug 2002
Location: SanAntonio, Tx
Posts: 957
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![]() I think my injectors need cleaning too, I would like to check into this schraeder valve connector, can you get everything you need from a parts store?
thnx Btw, friend of mine had to send back a defective msd coil, it was new, but made the engine pop under load over 3k. good luck.
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X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear |
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#13 |
Registered Member
Join Date: Mar 2004
Location: Minnesota
Posts: 950
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![]() I want to see some pics of this sweet looking coupe!
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Alex |
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#14 |
Registered Member
Join Date: Nov 2006
Location: Naples FL
Posts: 106
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![]() ![]() ![]() here ya go bro...and i found out that it was bad gas ![]()
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ZEX ![]() ![]() |
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#15 |
Registered Member
Join Date: Mar 2004
Location: Minnesota
Posts: 950
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![]() Very sweet!
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Alex |
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