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GMC Safari/Chevy Astro

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What is this discussion about? GMC Safari, Chevrolet Astro, Van

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#989 of 1889 1995 GMC Safari 4.3L 4L60-E VIN W by jdegenhart Jul 31, 2005 (1:50 pm)
Symptom = rough ide in park, terrible idle in gear. Very good engine performance as soon as it builds to about 2K RPM. Oil Pressure at idle is 30, 60 at 2K RPM.   Only Code 12 (of course) and 83 is thrown.   Would the bad TTC PWM Solenoid make the van run rough, or is their no relation between a bad idle and this solenoid??   Thanks, James Replies to this message: nextlevel (Jul 31, 2005 3:26 pm)
#990 of 1889 Re: 1995 GMC Safari 4.3L 4L60-E VIN W [jdegenhart] by nextlevel Jul 31, 2005 (3:26 pm)
Replying to: jdegenhart (Jul 31, 2005 1:50 pm) Hello! I an new to the forum and I hope you guys can tell me where to get the info I need. I hate to butt in on the conversation but I was not sure where to start.   I have a 1987 astro van and the four bolts in the steering column that hold the tilt u-joint in place have worked loose. I was able to get to two of them but the other two seem to be impossible to reach. Any help with this?   Nextlevel
#991 of 1889 Differential Noise??? 94 Astro 130,000mi by brantley1 Aug 01, 2005 (11:44 am)
For years I've heard a noise from "below" when I make a turn at any speed. I've had several family members listen and I've had a professional mechanic listen. No one can pin point the noise without cracking into something down under. At first, I thought it was only my all terrain Michelin tires "roaring" as a turn was made. However my father thinks that it's something in the rear end. I looked at the differential (without taking it apart) and it was a little low on gear grease, but that problem was quickly solved and the noise is still there.   I tow a boat frequently, but it's well within my load range. I tow an even lighter utility trailer, but again well within my load range for that vehicle.   Possible differential gearing problems to take place? Or do I need to have it checked out NOW?   Otherwise it's been a very solid vehicle with no major problems. FYI
#993 of 1889 Motor mounts on a 95 astro by kelly13 Aug 02, 2005 (3:21 pm)
I have a 1995 astro with 160,000 miles. It vibrates when put into reverse from underneath driver and passanger side, sometimes worse than others, hot or cold. No tranny work done yet. When I put into reverse there is 3/8 to 1/2 inch movement on the motor mounts. It stops vibrating when put into park or drive. You guys think motor mounts or tranny? Help Replies to this message: cob (Aug 03, 2005 8:22 am) kenbaker (Sep 26, 2005 8:55 am)
#994 of 1889 Re: Motor mounts on a 95 astro [kelly13] by cob Aug 03, 2005 (8:22 am)
Replying to: kelly13 (Aug 02, 2005 3:21 pm) I would say motor mounts are your problem. When you shift into reverse the motor is moving back against the body and sending the vibrations through the floor. When it is in drive it moves back away from the body. As long as you do not have the 4L60E trans which I believe was not used until 1996 you shouldn't have too many transmission problems.
#995 of 1889 1995 Astro..antilock brake problem.. by oldfart1956 Aug 04, 2005 (4:42 am)
Folks, bear with me, I'm new here. Anyways my '95 AWD Astro has a warning light on for the anti-lock brakes. As well, the brakes are not funtioning in anti-lock mode I assume. (no little "grunting noise" from the brakes when I first start moving) I did locate a post about this problem and it said to check the ground on the ABS pump...O.K...where's the ABS pump? The last vehicle I owned had points...life was easy then! Yes..points..a 1970 GMC pickup. Many thanks in advance to all. Audie..

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