GMC Safari V6

Castle_Rock · 10-12-2009, 07:52 PM

I have a 94 GMC Safari 4.3L V6 AT engine.

My question is: My transmission will not shift unless I let off the gas - also the vehicle is VERY slow when accelerating, but going on every since I bought the thing April this year.

Transmission fluid is fine, I just replaced the spark plugs, cap and rotor, changed the trans fluid, filter and gasket, changed the oil gasket and filter. And its still happening.

Any ideas?

Thanks.

**manic** · 10-13-2009, 02:12 AM

Check for vaccum leak. Or vaccum line is off. Might be linkage,,

Castle_Rock · 10-13-2009, 09:52 AM

Thanks for your reply, Are you referring to the AC vacuum lines or another set?

I'll check the linkage system, Its rusty under the vehicle, I hate to mess with it.

SlammedSdyme01 · 10-13-2009, 11:50 PM

Does your van have the 700r4 trans or the 4l60e? The 700r4 has a "kick down" cable which could be problematic, the 4l60e is electronic. Also do you know if it is a w, z or x code motor?

Castle_Rock · 10-14-2009, 12:29 AM

I have the VIN Z engine, As for the type of trans I am unsure, but will check the owners manual to see if it lists it.

Castle_Rock · 10-14-2009, 09:56 PM

Ok, after reviewing the underside of the van, I am determined it is a 4L60-E AT GM Trans.

10-12-2009, 07:52 PM	#1 (permalink)
Castle_Rock Registered User Join Date: Oct 2009 Posts: 4 OS: Vista	GMC Safari V6 I have a 94 GMC Safari 4.3L V6 AT engine. My question is: My transmission will not shift unless I let off the gas - also the vehicle is VERY slow when accelerating, but going on every since I bought the thing April this year. Transmission fluid is fine, I just replaced the spark plugs, cap and rotor, changed the trans fluid, filter and gasket, changed the oil gasket and filter. And its still happening. Any ideas? Thanks.

10-13-2009, 02:12 AM	#2 (permalink)
manic Mod Hardware Team Join Date: Aug 2005 Location: Florida Posts: 5,236 OS: xp	Re: GMC Safari V6 Check for vaccum leak. Or vaccum line is off. Might be linkage,, __________________

10-13-2009, 09:52 AM	#3 (permalink)
Castle_Rock Registered User Join Date: Oct 2009 Posts: 4 OS: Vista	Re: GMC Safari V6 Thanks for your reply, Are you referring to the AC vacuum lines or another set? I'll check the linkage system, Its rusty under the vehicle, I hate to mess with it.

10-13-2009, 11:50 PM	#4 (permalink)
SlammedSdyme01 Registered User Join Date: Jul 2009 Posts: 24 OS: vista	Re: GMC Safari V6 Does your van have the 700r4 trans or the 4l60e? The 700r4 has a "kick down" cable which could be problematic, the 4l60e is electronic. Also do you know if it is a w, z or x code motor?

10-14-2009, 12:29 AM	#5 (permalink)
Castle_Rock Registered User Join Date: Oct 2009 Posts: 4 OS: Vista	Re: GMC Safari V6 I have the VIN Z engine, As for the type of trans I am unsure, but will check the owners manual to see if it lists it.

10-14-2009, 09:56 PM	#6 (permalink)
Castle_Rock Registered User Join Date: Oct 2009 Posts: 4 OS: Vista	Re: GMC Safari V6 Ok, after reviewing the underside of the van, I am determined it is a 4L60-E AT GM Trans.