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89 trooper, 2.6, checked valve clearance, now no spark? UPDATE!
#684384
01/09/06 05:13 PM
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Joined: Jan 2005
Posts: 573
OP
Rock Warrior
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put everthing back together after i checked valves which were good, and would not start. poured some gas in throttle body to see if it would fire and nothing. all the engine fuses looked good. wires all appear to be connected? power going into coil, but nothing coming out.i'm stumped? anyone point me in the right direction here? fired right up before i touched it. i hate when i break stuff while trying to fix other stuff <img src="/forums/images/graemlins/confused.gif" alt="" />
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: mikes88troop]
#684385
01/09/06 05:25 PM
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Joined: Sep 2000
Posts: 4,277
Roll Me Over
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check the coil and its little ground wire which sits on top of the vavle cover. perhaps something didn't get all the way reconnected when you put the valve cover back on.
-Rob
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: mikes88troop]
#684386
01/09/06 05:47 PM
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Joined: Dec 2003
Posts: 24
Need a Spot
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There's also a small condensor looking thingy right beside the coil with a bullet connector.The truck won't run with that unplugged.It's also a good time to check the ground strap to the firewall.
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: mikes88troop]
#684387
01/09/06 09:23 PM
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Joined: Apr 2000
Posts: 7,268
Isuzu Moderator
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I would not pour gas into the TB. Not only is it very hard to get to (where did you actually "pour" it?) the there is very little down hill flow to get it anywhere near the engine. You run a great risk of starting a fire. If you must, use starting fluid.
As said above, check all the wires and check plug wires too. Unless you way overtightend the valves, if it ran before, it should run again.
Michael
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: mlclark]
#684388
01/09/06 09:59 PM
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Joined: Jan 2005
Posts: 573
OP
Rock Warrior
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actually i have a syringe with a bit of hose on end just for this paticular job. i did not have to adjust valves, they were all right on the money.i've triple checked all wires mentioned and all are good.i did something else that i'm starting to think may be the problem. there "was" a high end stereo in it at one point. i pulled a heavy gauge power wire that went from battery to cargo area and a small gauge red wire that went from battery to under dash and was just hanging, ( no stereo in it now). most likly power for stereo memory. while i'm under there i decided to pull (under carpet) from front to back the heavy gauge speaker wires that keeps interfering with my feet.while i'm pulling it, a piece of light green small gauge wire comes out with it. <img src="/forums/images/graemlins/zombie.gif" alt="" /> thats the only wire i'm not sure what it was. thinking now it may have been to fuel pump or ecm related??? need to wait till i get a helper to crank it over for me. cant tell much from the drivers seat. wish me luck.
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: mikes88troop]
#684389
01/09/06 10:15 PM
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Joined: Jun 2004
Posts: 576
Rock Warrior
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Are you sure you are getting gas to the cylinders? Are the plugs wet from not firing. Is the pump pumping, take some wires and run thim from the battery to the tank unplug the black harness and jump it off, if it runs then you need to look elsewhere.
Madcat <img src="/forums/images/graemlins/kewl.gif" alt="" />
1979 Pontiac Trans-Am - looking 4 a pontiac 455cid 1988 Trooper II - AMC head, .030 overbore, Calmini cam. Toga HV oil pump, Aisins, soon 2 b turbo 1989 Impulse Turbo - Fidanza flywheel, 270cc injectors, turbo-back exhaust, KYBs F/R
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: mikes88troop]
#684390
01/10/06 03:52 AM
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Joined: Apr 2000
Posts: 7,268
Isuzu Moderator
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actually i have a syringe with a bit of hose on end just for this paticular job.
Regardless of how you get it delivered, it is still a bad idea. I probably will not change your mind, but I hope to maybe prevent someone from getting hurt or buring their rig to the ground. I'll repeat it again, if you need to, use ether. It is cheap and much safer. It is more volitile and will actually be sucked into the engine. Gas will pool in the manifold, or even worse, behind the valves.
In general, these FI engines either have fuel and run or don't. Starting assistance is not needed. There is are no bowls on a carb to fill or mechanical fuel pumps to pump.
[/soapbox]
Enough from me on that. <img src="/forums/images/graemlins/smile.gif" alt="" /> Go back and check the wirng. It sounds like you pulled out something that you should not have.
Good Luck, Michael
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: mlclark]
#684391
01/10/06 04:51 AM
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Joined: Apr 2003
Posts: 898
Rock Warrior
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Both methods are a BAD idea... starting fluid is a no no also.
I wonder though, if you are putting fuel in the throttle body, are you hooking all the air intake back up before trying to start?
If the intake duct with the MAF attached is not on the intake, it won't run, fire, or anything. The 2.6 HAS to have the MAF sensor on the intake steam or the ECM doesn't know what's going on.
Have you actually pulled a plug or put an inline spark tester on it to know for a fact that it's getting spark?
By your description, you don't have the MAF connected.
Last edited by litnin; 01/10/06 04:52 AM.
1995 Trooper LS auto 3.2 DOHC /w SOHC intake 1989 Trooper 2.6 auto 1989 I-Mark RS DOHC 1.6 1991 Stylus XS DOHC 1.8
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: litnin]
#684392
01/10/06 04:43 PM
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Joined: Jan 2005
Posts: 573
OP
Rock Warrior
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well i got a helper to crank her over while i checked with an inline spark tester - no spark. pulled a couple of plugs and plugs are wet so it's getting gas. coil , ground, small condensor on valve cover all are connected. going to pull seats and carpet next to rule out that green wire issue. if thats not it i'll have to look elsewhere.to be continued
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Re: 89 trooper, 2.6, checked valve clearance, now no spark?
[Re: mikes88troop]
#684393
01/10/06 06:32 PM
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Joined: Sep 2000
Posts: 4,277
Roll Me Over
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did you check to see if you are recieving power in to/out of the coil?
-Rob
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