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#1
03-16-2008, 02:34 PM
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OLDS bravada no power
i have a 1994 olsmobile bravada and when i floor it at a dead stop it doesnt move like it should, but when i am going 30 to 40 and floor it it has power.....whats wrong with it.
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#2
03-16-2008, 02:48 PM
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Re: OLDS bravada no power
What have you checked so far?
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#3
03-16-2008, 04:54 PM
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Re: OLDS bravada no power
We replaced the fuel pump and the main computer. we are being told the #5 cylinder is mis-firing and because it is a "spider" we will have to replace the whole thing.
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#4
03-16-2008, 04:56 PM
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Re: OLDS bravada no power
Before you spend any more money on the vehicle, I would suggest checking the fuel pressure and leakdown rate. The ECM (Electronic Control Module) is a very substantial piece and rarely needs replacement. Most of the time, it is replaced due to a technician not following the diagnostic flow charts correctly.
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#6
03-16-2008, 05:17 PM
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Re: OLDS bravada no power
There is a service port on the fuel pressure line very close to the distributor. Key on, engine off, pump running, pressure must be 60psi to 66psi. Pressure must remain above 55psi for 3 to 5 minutes after the pump shuts off. Check your AF inbox.
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#7
03-16-2008, 05:53 PM
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Re: OLDS bravada no power
Here's the service port,
 Fuel pressure test kits are available at most auro parts stores and Harbor Freight.
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