Question about Isuzu Pickup

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I just bought this truck three day's ago. The truck was running a very high idle when I bought it and the radiator needed to be changed. I changed the radiator and put a brand new battery in it but now the car will not start without me pumping the gas and once it starts I have to keep my foot on the gas in order to keep it on. If I let my foot off of the gas the truck shut's off. It is a 1994 isuzu pick up, can someone help me please.

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  • seanwu_1 May 25, 2010

    I just bought this truck three day's ago. The truck was running a very high idle when I bought it and the radiator needed to be changed. I changed the radiator and put a brand new battery in it but now the car will not start without me pumping the gas and once it starts I have to keep my foot on the

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Replace the TPS sensor on the throttle body and the idle air control valve

That will take care of both faults

Posted on May 25, 2010

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Hi! The fuel pump may need to be replaced to get a stable fuel supply, check the fuel pump relay too for it may be faulty resulting to not giving power to the fuel pump to **** fuel from the fuel tank to engine. Hope this helps and have a good one!

Posted on May 25, 2010

  • dj_relly999
    dj_relly999 May 25, 2010

    Kindly check the MAF (mass air flow) sensor too. This may be faulty thats why its giving you high revs. This has big contribution on engine performance specially on the idling.

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