91 explorer body and transmission/ 94 engine

[kumar_svt]

I got a used 94 explorer engine for my 91 explorer. The engine was incomplete, because the intake manifold didnt come with it; so i put my old 91 intake manifold on the 94 engine. Everithing bolted on right. Plugged up all electrical, but i didnt lable the vacuum hoses to where they go and join together with "t" fittings. I turned it on, and its alive. The only problem it idles at 1500 and it goes down alittle after i let it warm up, but when i accelarate; the rpms go up to 2000 and stays there.

 

[alfilrey]

REVIEW OF NEW CONNECTIONS HOSES VACUUM CHECK THAT ARE NOT BROKEN; ALSO, FOR THAT, YOU SHOULD INSPECT IAC VALVE, IS LIKELY TO BE THAT FAILURE TO HAVE. IF YOU CAN DO IT, remove and clean it.

 

[xplorernewb]

check your throttle cable from the tb to the pedal to make sure it isnt binding or stuck under the carpet if you have it. seen that happen a couple times