Question about 1985 GMC Jimmy

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Will not start.

1995 GMC Jimmy 4.3 vortec V6. some times the truck will not start. If I give it a shot of starting fluid it will start right up. What could it be?

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The "spider" up under the plastic intake plenm, the poppets athe end of each of the plastic tubes that supply the fuel to the cylinders get carbon on them and cant spray fuel. to buy a new one at GM its $550.00 Gm is the oly place you should look for one no matter the price aftermarket "copies" are not the same and while you are in there change the fuel prssure regulator at the sam time they are bot a big problem with the vortec
Change the fuel filte also and then EVERY EVERY 15,000 mles and don't worry about the engine oil change that once every 4 or 5 years that is not nearly as important as the fuel filter nothing will happen just remember the fuel filter and forget oil changes don't worry about all that 3000 mile stuff.

Posted on Sep 01, 2008

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You're gonna want to check your gauges real carefully next time it happens. It's possible that the truck is overheating, or some electrical issue is causing it to short out. Eliminating possibilities here will be the goal. So be sure all your fluids are topped up. It's an old truck indeed, so there are a whole lot of possibilities.

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