I just replaced the intake gaskets on a 2000 olds bravada because of leaking antifreeze it ran fine before the distributor was put back in the correct position but the center and rear plug are not firing they have good spark but it seems like i'm not getting fuel to the two cylinders could this be something to do with the spyder fuel lines i did separate to upper and lower to replace all gaskets could it be something i did

SOURCE: won't start after intake gasket replacement

ase mechanic here. this has happened to me too, try checking your wiring again, it is very easy to mix up the back three cylinders. and on the coil remember number six is the middle coil. from left to right its 523614

pat murray

• 293 Answers
• Posted on Sep 24, 2008

SOURCE: my 93 bravada wont start since i replaced sending unit

check for power at the sending unit should have power for 10 sec on i belive the purple wire and the other wire will have power all the time power for 10 sec is what u want for fuel pump power ahd if u have power u should be able to hear fuel pump if you have power and do not hear pump pull sender out and check connection from pump to sender also check fuel connection from pump to sender

SOURCE: lower intake manifold gasket leaking 02 Olds Silhouette

This is basicly a very time consuming job rather than a physically hard one to complete. In order to replace the gasket you must remove the intake plenum,throttle body, and misc. vacuum hoses. The wiring harness connections must also be disconnected. Finally the intake manifold is exposed. The bolts holding the manifold to the block are removed exposing the leaking gasket. After removing the push rods and placing them in the correct order to be replaced the gasket and sealants can be removed. Finally replace everything in reverse order. Be sure to consult a GM manual for correct bolt torch specs. The correct specs for the manifold bolts usually come with the gasket. Make sure to change your oil a few times after this job in case any coolant entered the block. Also,change the thermostat and the oil seal on the distributor half shaft cap while you have everything off. Good Luck

SOURCE: 94 Bravada that stumbles and stalls.. won't start when warm..

Try checking the exhaust flow when someone else is pushing down on the gas petal.The farther the petal gos down,the more exhaust should be coming out. I replaced my catalitic convertor at 44000 miles, it was clogged. I had them install a high flow type.

SOURCE: 99 olds bravada. just replaced fuel pump 2 weeks

Aftermarket fuel pump failure? Try "thepartsladi" store on eBay for low price GM OEM parts. Could also be wiring harness to fuel pump.