Got a Quick, Technical Question?

4961 messages, Last post on Dec 03, 2009 at 6:01 AM

You are in the Maintenance & Repair Forum. Your Host is mr_shiftright

What is this discussion about? Brakes, Electrical, Engine, Exhaust

A Place to Post A Question That Doesn't Need a Discussion--Only One Quick Answer!

Outline

Messages Page 332 of 497: 1; ...; 329; 330; 331; 332; 333; 334; 335; ...; 497; Prev; Next; Last

#3305 of 4961 Re: Rapid Parasitic Drain [burdawg] by user777 Mar 27, 2007 (9:04 am)
Replying to: burdawg (Mar 26, 2007 8:05 pm) exactly.
#3306 of 4961 Re: 3800 Series II SC idle fluctuations [dave8697] by dave8697 Mar 28, 2007 (3:26 pm)
Replying to: dave8697 (Mar 23, 2007 9:21 am) Problem solved. The idle has totally smoothed out since the bolt tightening on the vacuum fitting plate and the MAF sensor brushing with CRC. Checked mileage today on 296 mile tank and it was 28.5 for combined city and hwy. That is definitely back to normal and as good as 68,000 miles ago when I first got the car. Replies to this message: imidazol97 (Mar 28, 2007 4:24 pm) dave8697 (Mar 28, 2007 5:20 pm) dave8697 (May 02, 2007 9:12 pm)
#3307 of 4961 Re: 3800 Series II SC idle fluctuations [dave8697] by imidazol97 Mar 28, 2007 (4:24 pm)
Replying to: dave8697 (Mar 28, 2007 3:26 pm) I reread the thread and you asked about sealant for the new coolant and I didn't respond... I used 2-3 pellets of the organic material sold at GM parts counters. It's a finely ground something or other that swells anywhere it starts to seep out of the liquid and seals. There are 5 pellets in a pack for a few dollars. They might tell you how much to put in at the dealer. I think there's a special blend for Northstars. But for my 3800's I was told by service manager to use a couple. Each time I do a two-year DexCool change, I rinse with plain water a couple of cycles and run the motor, drain, and refill after cooling. So I figure it lost the free, circulating particles from the original pellets. I wouldn't use any commercial stopleak type materials for fear of blocking the heater. Replies to this message: dave8697 (Mar 28, 2007 5:20 pm)
#3308 of 4961 Re: 3800 Series II SC idle fluctuations [imidazol97] by dave8697 Mar 28, 2007 (5:20 pm)
Replying to: imidazol97 (Mar 28, 2007 4:24 pm) Thanks, my leak is slight but it will be good to plug it. I bought the car at 7-8 yrs old and 88,000 miles on it. I figure the first two owners did not flush it. I added about 2 qts new last year but it definitely needs changed. I will try the organic pellets and flush it. It took three bleeds to get all the air out. I put in a new non OEM coolant temp sensor when it first acted up. The temp gage read 1 bar below 200 degrees. Only the car acted up worse due to MAF, vac leaks, etc, so I cleaned and put back the original coolant temp sensor after a few weeks. Ever since, the temp reads half a bar higher. It went down slightly after bleeding out the air. Should I swap back to the newer sensor? Does the temp gage read different because one sensor sends a more accurate signal or because the old sensor makes the engine run hotter?
#3309 of 4961 Re: 3800 Series II SC idle fluctuations [dave8697] by imidazol97 Mar 28, 2007 (5:48 pm)
Replying to: dave8697 (Mar 20, 2007 3:57 pm) I finally found the original post. It's not in the links and I missed it. If the DexCool is red (orange?) it's not been in there 11 years! It should be changed every 2 years but it's 5 years optimum. Actually if you have a voltmeter, put the negative on the ground of the battery and the positive lead into the coolant in the radiator. If it shows more than .3 or .4 volts, time to change out the DexCool because you're getting voltages generated form the metals in the system that shouldn't be due to additives in the coolant having worn out. The coolant leak... could that be an elbow that seals with little o-rings? In Bonnevilles they often mention that as a problem area.
#3310 of 4961 Fuel Gauge Problems by svtmustang Mar 29, 2007 (12:33 pm)
I have a '01 Pontiac Montana. The fuel gauge reads fine with the tank full, but is totally inaccurate below half tank. When the gauge starts reading all over the place I know I'm getting close to empty. I have had fuel gauge problems on other vehicles in the past and they have generally been bad ground issues. Anyone know where the sender ground is on these vehicles? Is that likely to be the culprit this time too? Any help would be appreciated Replies to this message: bolivar (Mar 31, 2007 8:37 pm)
#3311 of 4961 Re: 1991 mercedes 560SEL-adding power steering fluid [s1091] by pgshields Mar 31, 2007 (8:34 pm)
Replying to: s1091 (Feb 08, 2005 10:04 am) where is the answer to the question?
#3312 of 4961 Re: Fuel Gauge Problems [svtmustang] by bolivar Mar 31, 2007 (8:37 pm)
Replying to: svtmustang (Mar 29, 2007 12:33 pm) More probably the sender unit rather than just a ground, especially since it reads ok over part of the range. Most of these are inside the fuel tank. Fuel tank must be dropped to access it.
#3313 of 4961 driving on a bad transmission by bwebber1 Apr 01, 2007 (11:45 am)
Daughter took my 93 Chevy Blazer to college and transmission went bad...can't get out of 2nd. Could I drive it a hundred or so miles to get it home? Obviously would have to take the back roads. The terrain is hilly also. Any advice? Replies to this message: kiawah (Apr 01, 2007 12:27 pm)
#3314 of 4961 Re: driving on a bad transmission [bwebber1] by kiawah Apr 01, 2007 (12:27 pm)
Replying to: bwebber1 (Apr 01, 2007 11:45 am) You'd be better off renting a tow dollie, put the drive wheels up on the dollie and pull it home with another truck/large car. You have no idea what the problem is, and driving it futher may tear up other parts if there are broken pieces already floating around.