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 my brand new 3.0 dosent run!
#740925
07/28/06 07:52 AM
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Joined: Feb 2006
Posts: 29
OP
Getting the Wheeling Fever
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I just finished putting in a rebuilt 3.0 in my 88 4runner.I also put downey headders on it. Yesterday I started it up for the seconed time. i drove it about a mile (it was hella loud since I havent connected my headders up to the exhaust system yet)This moning I start it up and it was running poorly, it wouldnt stay at idle and had no power. now it hardly runs at all. my buddy thinks that one of the intake gaskets has a leak in it. Any ideas?
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Re: my brand new 3.0 dosent run!
[Re: lostone]
#740926
07/28/06 01:53 PM
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Joined: Oct 2002
Posts: 1,305
Body Damage is Cool
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how's the color on all 6 plugs?
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Re: my brand new 3.0 dosent run!
[Re: lostone]
#740927
07/28/06 04:01 PM
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Joined: Jul 2003
Posts: 211
Wheeler
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I, recently rebuilt my 3.slow and had a similar problem. The cause was a few of the grounds not being installed also check your vac hoses.
1989 Toyota SR5 DLX SB
1995 Toy DX XTRA Cab 4x4
1989 Dodge Raider 3.0 V6, 5 spd, Michelin LTX series, bouncey seat
1988 Dodge Raider A/T w/Offroad Package
1959 Corvette
1977 Z28
1979 Honda CBX 1000 6 cyl
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Re: my brand new 3.0 dosent run!
[Re: DirtCheap]
#740928
07/28/06 04:41 PM
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Joined: Aug 2003
Posts: 2,311
Forum Moderator
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Also check that your intake tube is sealed from the VAFM to the TPS.
(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)
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Re: my brand new 3.0 dosent run!
[Re: lostone]
#740929
07/30/06 04:58 PM
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Joined: Jan 2000
Posts: 454
Mudrunner
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I doubt an intake manifold leak would cause a no run issue, but would cause poor running, unless its severe and allowing coolant in. As someone else said, check your plugs.
One way to check for an intake leak (or vaccume) is to spray WD40 (carb clnr & starting fluid work too but less advisable) around the connections and look for an rpm change.
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Re: my brand new 3.0 dosent run!
[Re: Toy4x]
#740930
07/31/06 07:13 PM
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Joined: Aug 2003
Posts: 2,311
Forum Moderator
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I doubt an intake manifold leak would cause a no run issue, but would cause poor running, unless its severe and allowing coolant in. As someone else said, check your plugs.
One way to check for an intake leak (or vaccume) is to spray WD40 (carb clnr & starting fluid work too but less advisable) around the connections and look for an rpm change. I know for sure that a 3.0 won't run especially if it gets enough air from the leak that the VAFM flapper won't move. IE you wont get any fuel into the engine without the flapper moving.
(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)
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Re: my brand new 3.0 dosent run!
[Re: Rauch_Off_Road]
#740931
08/02/06 12:54 AM
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Joined: Jan 2000
Posts: 454
Mudrunner
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The poster mentioned his buddy thought it might be an intake gskt leak, I don't agree, with the info he's supplied.
If someone takes what you know for sure, and info from someone else, they might put 2&2 together and come up with a solution for their problem.
FWIW, I recall my 3.0 starting and stalling as soon as the keyswitch was released from the crank position without an afm signal/flapper door movement, likely gettin fuel from the cold start inj.
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