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#1
10-31-2004, 01:55 AM
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94 bravada help needed
i have a 94 bravada it has a weird clunk when you turn and a click click noise when you speed up it also has a heck of a miss while driving it will act like its only running on 3-4 cylendersi need help with it i just got it 4 days ago not running for 300 bux it is in perfect shape inside and out the person i got it from said it wase missing so she payed a backyard mechanic to do a tune up well i am a back yard mechanic and i couldent break 3 plugs if i tried anyways i replaced the 3 plugs and 3 broken wires with one's off my 94 astro with a blown up 4.3 and it has a miss that makes the whole truck vibrate really bad while excellerating it acts like a stick when you lug it down really bad it just had a tranny put in in 99 and a new cat and muffler i need help to figure this out really soon
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#2
10-31-2004, 09:01 PM
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Re: 94 bravada help needed
Your noises might be related to the poor running condition of the engine. You access the sparkplugs through the rubber flaps on the inner fenders from behind the front tires with a wobble socket, 12" extension and ratchet. Change the plugs and be careful around #5 as the knock sensor closeby has a very-very fragile plastic connector that'll break if you get near it with anything.
While you've got the plugs out on either side, smell'em for raw gas...you most likely have a CPI injector problem and/or cracked fuel supply lines inside the intake manifold spraying fuel everywhere...might even be deluting your oil so thin it'll wipeout the bearings and crankshaft. Don't ruin yer crank for the price of 5 qts. of oil. You got a good deal, just repair the car to get your money's worth. Is the car pretty slick otherwise? I think the '94 was the nicest, most reliable year.They had very nice options. My '92 has been a good one but like any car, they have to be maintained. Lotta people complain about the price of the CPI replacement...they just need to compare the price against other fuelers including electronic carburetors.
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#3
11-01-2004, 12:28 AM
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Re: Re: 94 bravada help needed
Quote:
me again there is no fuel smell on any plugs yes it is in mint shape inside and out and i love the interior it is the nicest of the 8 s10 blazers and trucks i have owned
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#4
11-02-2004, 10:19 AM
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Re: 94 bravada help needed
Rough idle sounds like chris said, you need to replace your cpi. Buy the regulator on e-bay or at your local auto parts store and the nut kit at the dealer. Remove your plenum and if one side is real shiny you have a leaky cpi/nut kit.(Check out the blazer forum for a pic of what it would look like)
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#5
11-03-2004, 03:34 AM
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I guess we need to start:
#1 Do you have a Check Engine light on? #2 Do you know how to get any Trouble Codes? #3 Have you changed those other 3 plugs yet? Post your results and we'll try and work this out. The prices on Bravadas are falling through bottom. It won't be long till people start junkin'em' out, what a crummy deal for America's first luxo SUV. Wish I had a pot fulla cash and an empty barn.
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#6
11-03-2004, 10:38 AM
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Re: 94 bravada help needed
Quote:
cpi do in next week 339 from my local parts store and plugs wires cap and rotor and new cateletic will be in this week check engine light not on has 52 psi fuel presure new high flow pump no gas on plugs or in oil alredy had codes read no trouble codes i am pulling off the intake in a few days to see if its leaking or not i alredy looked through the thing under the vorteck emblem couldent see a thing looked grimey as hell
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#8
11-03-2004, 01:53 PM
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Re: 94 bravada help needed
its me i have it apart and took some pics of it it wase leaking really bad time for a cpi i cant figure out howe to add pics to my post i have some good pics of a leajy cpi help on adding them in here woulde be cool
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#9
11-03-2004, 02:24 PM
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Re: 94 bravada help needed
You won't believe the improvement you'll see in the way it runs and mpg. Just take your time putting it all back together. Once you get it all back together turn your key just to on to pressurize your fuel lines and to check for a leak. Don't forget to check your egr port and make sure it is clear and free of all carbon.
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#10
11-04-2004, 01:33 AM
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Glad you found your problem, like Lou says, a pressure test by turning on the ignition switch after you install the parts will confirm a good assembly.
How many miles you got on that baby?
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#13
11-07-2004, 07:39 PM
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Re: 94 bravada help needed
I paid $275 for the CPI and $68 for the line kit(they call it a nut kit but there ain't a nut in the kit...maybe they're talkin' about the guy at the other end of the wrench handle...lol) and that was a few years ago so what your talking about is not bad at all to me.
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#14
11-08-2004, 01:12 AM
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Re: 94 bravada help needed
o yeah another question y does the front end act like its in 4 wheel all the time i mean its a awd but the front end skips like its a real 4x4 on pavement bouth front wheels try to spin the same speed
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