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allansmith859 09-26-2012 06:09 AM

94 chevy no power
 
Hey guys I have a 1994 chevy 1500 2wd and it has no power what so ever. It is using gas like u wouldn believe. If Im at a stop and put the gas pedal to the floor it doesnt go like it should. While Im driving I have the same problem. The truck runs great, the engine light isnt on, it almost like it has something to do with the intake or throttle body. It simply just does not have power. You can here it suckin the gas down. I can see the gas gauge move, no joke. Was thinking about buying a new intake manifold from jegs and trying that. If that helps out a little then I was thinkin about putting a performer carb on it. Whats your all opinion on this????

Thanks

cdminter59 09-26-2012 08:20 AM

94 chevy no power
 
Does this truck have a TPI EFI system on a 350 motor. Have you made any changes to the motor? If yes please list all the changes you have made.

joe_padavano 09-26-2012 10:25 AM

Did this happen all of a sudden? Simply swapping an intake is NOT going to fix a problem. Could be ignition, throttle body, vacuum leak, or a number of other problems, none of which will throw a code. Throwing parts at the truck without troubleshooting first is a good way to waste a lot of money. If you have that much extra cash, send some my way. Otherwise, do some proper troubleshooting first.

allansmith859 09-27-2012 09:17 PM

The truck does have TPI EFI and its all stock. I bought the truck not long ago. I used to have the same truck but a 93 modle and it wasn like this. regardless i plan on getting a intake and maybe upgrade the EFI but first I would like to figure out why it has no power. Im pretty sure there are no vaccum leaks. I am clueless. It kinda seems hesitant when I hit the throttle

rickman2k 09-27-2012 09:42 PM

should be TBI
 
sounds like the fuel system is going bad, the filter in the gas tank could be clogged over, the fuel filter could be full, or the fuel regulator inside the throttle body (TBI) could need replacing. With it sucking down gas I'd check the regulator first

cdminter59 09-27-2012 11:08 PM

94 chevy no power
 
Do you do all the work on your truck? This sounds like a problem that may take some testing of sensors, your fuel pump pressure. Start out getting a can of carburetor cleaner, spray along the intake & heads, front and back of intake, and base of throttle body. This is cheap and eliminates vacuum leaks. Things that make the engine use more gas: EGR Valve, EGR solenoid, coolant temp sensor, knock sensor, intake air sensor, plugs, plug wires, camshaft position sensor, ignition module, and the PCM computer. With all these electrical parts in my opinion it would be best to have it check by the dealer. This way you are not buying parts you don't need. They will hook it up to an engine analyzer to find the problem.


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