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The idle in my 1996 gmc safari van is way too fast. When it began I would have to wait about a minute to put it in gear,now it idles even faster and does'nt go away
I have a 97 chevy s10 blazer 4.3l auto 4x4 idles very high. TPS reads the normal .5 volts at sensor. scan tool reads o,82 at koeo and runiing it is 1,27volts still reads 0.5 volts at sensor. weird thing is charging volts at batt and alt is 14.3 volts and scan tool says 17 volts. how can scan tool perceive higher voltage potential then supplied voltage? unhooked alt and vehicle idles normal till batt runs low. apply external volts via jump box or jump vehicle and idle raises again. so problem is not alt. the higher the volts the higher the idle and visa versa.I have a 97 chevy s10 blazer 4.3l auto 4x4 idles very high. TPS reads the normal .5 volts at sensor. scan tool reads o,82 at koeo and runiing it is 1,27volts still reads 0.5 volts at sensor. weird thing is charging volts at batt and alt is 14.3 volts and scan tool says 17 volts. how can scan tool perceive higher voltage potential then supplied voltage? unhooked alt and vehicle idles normal till batt runs low. apply external volts via jump box or jump vehicle and idle raises again. so problem is not alt. the higher the volts the higher the idle and visa versa.
AnonymousMar 20, 2014
Engine idles way too fast.Engine idles way too fast.
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If it Idles well in park and neutral but shutters when you put it into gear then I would say the trans. torque converter is staying locked.You may want to try and flush the trans,replace filter and fluid.
its soaking air somewere around the manifold make sure you thigten the bolts on the wight pattern if yoou dont know the pattern start from te center to the outside or reset the computer just unhooked the negative cable from the batery for 5 minutes,
maybe your iac valve is not working? it takes place of a choke or temp sender to computer could be bad which controls t I.A.C. known as the idle control valve,do you have any codes?
Im not sure if you got it fixed yet! It could possibly be idle air control valve. But here some more suggestions! I had a 94 Safari van 4.3 liter I was working on for about three days and I finally figured out what was wrong with it. It would run fine for a couple minutes and as soon as I hit the gas and let off it would surge, but anyways I ended up changing the distributer, after the fuel pump and filter, mass air flow sensor, egr valve, idle air control valve, map sensor, and ignition module. So that might sove the problem if you were on the same track with it as I was. Hope this helps ya!
I have a 97 chevy s10 blazer 4.3l auto 4x4 idles very high. TPS reads the normal .5 volts at sensor. scan tool reads o,82 at koeo and runiing it is 1,27volts still reads 0.5 volts at sensor. weird thing is charging volts at batt and alt is 14.3 volts and scan tool says 17 volts. how can scan tool perceive higher voltage potential then supplied voltage? unhooked alt and vehicle idles normal till batt runs low. apply external volts via jump box or jump vehicle and idle raises again. so problem is not alt. the higher the volts the higher the idle and visa versa.
Engine idles way too fast.
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