Author
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Topic: Need help with timing 89 5.0
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krazy_svt
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Member # 9259
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posted
My car started running like carp the other day. I'm thinking that it Maybe the timing. I got a cheap Timing light. I hooked it up, Still runs the same or worst. So Any help would be helpfull. What Wire do I need to disconnect? Before I start. Thank you.
Posts: 364 | From: San Jose | Registered: Jun 2009
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Egocentric
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Member # 9529
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posted
The timing isn't going to magicaly come undone, it's something else.
-------------------- 08 G37S 72 C10 Custom R6
quote: ain't no one tell me what to do. - NEIGHT
Posts: 1712 | From: NoOneTellMeWhatToDo-Neight | Registered: Oct 2009
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FivePTSlow
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Member # 7682
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posted
The only way timing would change without you changing it is if your distributor bolt was loose and your distributor could move on it's own. If you drive an 87-93 you'll see a little "pill" hanging right by the distributor. When you set your base timing you remove that pill and set your timing. I've used $6 timing lights and they work fine, so the timing light shouldn't be a problem.
-------------------- 2011 GT/CS 5.0 + Boost(Procharger) 90 Bronco 5.8 Lifted 05 SRT-4 24PSI E-85 at least 50 million hp 07 Harley VROD NRS Stage 1
Posts: 1857 | From: Sacramento | Registered: May 2007
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95gtdroptop
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Member # 8330
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posted
^^^ what he said.
check for a vacuum leak, when was it tuned up last?
-------------------- 95 gt drop top- sold 97 cobra coupe
Posts: 19 | From: sacramento(citrus heights) | Registered: Apr 2008
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Anderthizzle
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Member # 7910
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posted
Well theres your problem its running like a carp.Just kidding mine did that to and the hose to my pvc popped off.
Posts: 1056 | From: Here and there | Registered: Sep 2007
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bentley mobs a stang
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Member # 11119
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posted
everyone is right, undo the piece by the distributor and check the base timing if u really think ur distributor jumped on you. and if thats the case mark it and pull out the distributor and look at the condition of your gear that spins with the oil pump. also, if the engine is misfiring look at the ends of wires for corrosion as well as the cap and rotor, and of course the condition of the plugs. if your getting a high idle look for vacuum leaks use the old carb cleaner trick to find any leaks.
-------------------- We're here for a good time, not a long time.
Posts: 531 | From: East Bay | Registered: Jul 2011
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krazy_svt
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Member # 9259
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posted
Thanks for the help. Still running like crap. How much would someone charge to do this?
Posts: 364 | From: San Jose | Registered: Jun 2009
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moeofit32
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Member # 10393
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posted
jus a guess but check your harmonic balancer the rubber in the middle on mine was shot so it was moving had my timing all messed up cause it would keep moving.....it was the stock h/b from factory
-------------------- 95 stroked and blown cobra
Posts: 2387 | From: antioch ca | Registered: Oct 2010
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Sikwidit-blumaxx88
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Member # 11046
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posted
Check for a mis fire, spark plug wires on all the way, change spark plugs if they haven't been changed in awhile.
-------------------- SikwidiT cc 1988 5.0
Posts: 507 | From: East bay | Registered: Jun 2011
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2BlueGeeTees
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Member # 4702
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posted
It definitely sounds like the smart place to start is a FULL tune up and go from there bud
Posts: 2316 | From: Vacaville | Registered: Jul 2004
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89foxstang
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Member # 5908
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posted
quote: Originally posted by 2BlueGeeTees: It definitely sounds like the smart place to start is a FULL tune up and go from there bud
agreed best place to start with a hard miss is usually a tune up and while your at it throw a comp gauge on a couple cyls to check. also make note of the color of the porcelin on the spark plug may give you an indication of where the miss is coming from. you never said what your base timing was set at?
Posts: 825 | From: Davis | Registered: Aug 2005
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89foxstang
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Member # 5908
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posted
also i noticed i just assumed that it was a hard miss how exactly is it running like crap? when does it run the worst idle mid range full throttle ? Does it run the same hot or cold? the more details the better
Posts: 825 | From: Davis | Registered: Aug 2005
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MUSTTANGUY
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Member # 2251
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posted
Actually timing can change A stretched/loose timing chain can cause timing to change several degrees and worse if a tooth is jumped between cam gear and crank. Take motor to TDC and confirm mark on crank and location of pickup on inside of distributor are lined up to #1.
-------------------- Tim (Musttanguy) 97 5.0 coupe 82 GT 427/T56/9"
Posts: 1690 | From: Lodi | Registered: Dec 2002
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