You'll go over the rest of the truck. The transmission was one of the most important potential problems as it had some shifting issues that I mentioned previously. Looking forward to hearing from you! The process uses tools you can find at any local auto shop and can be performed in the comfort of your own driveway with about 30 minutes of your free time. However, it sounds like you may have valve body issues assuming it's a 700R4. Harsh shifting can also be sticky or maladjusted pressure switch signals, line pressure too high or pressure regulator issues.
At light throttle, there will be no harshness but rather a quick and smooth upshift to the next gear. Thanks for your look and advise. I think the transmission will respond well. Check the books if you don't believe me. . Also when it shifts between any gear it sometimes shifts hard with a load thud and you can really feel it.
Any help would be greatly appreciated. Shifts should be distinct, though like the later transmissions you mention, there is typically a softer shift feel. This 1990 chevy truck has a 305 Engine, and when it goes from first to second it has to rev up before it shifts into 2nd. It is helpful to learn how to troubleshoot this automatic overdrive transmission before you take the car to a mechanic to be assessed, so that you know what issues you will need to address with the mechanic. Clean the dipstick off with a clean rag and return it to its original position in the filler neck. Again, unless the truck has a taller axle ratio, you will notice the lower first gear ratio.
The 1991 Chevrolet C1500 automatic transmission would be a 4L60, not the 4L60E electronically controlled unit phased into production in 1993. From what you shared about the color of the fluid, the transmission sounded due for a fluid change and filter. Glad nothing ominous turned up in the transmission oil pan. The truck has 171,000 miles and has been maintained fairly well aside from a slight leak in the radiator and a bad signal from the coolant temperature sensor, an oil pressure gauge that seems to read high, and a sticky brake light switch are going to be fun to repair with my son. Still, the shifts should be smooth with this unit unless you have your foot in the throttle. I do not know what the automatic transmission is or were to look but I am pretty sure it's the factory original.
Jeff, the 700R4 and 4L60 have an extra low first gear ratio. I found myself thinking about how a 1991 automatic transmission is supposed to feel like and how can I relate what I'm feeling and hearing? If the fluid is below or at the low mark, add more fluid using the funnel and the proper manufacturer-approved transmission fluid. The debris in the pan was very small and soft and difficult for me to identify, pictures will come later as I'm away from home. Do do I have a 4L60 or 4L60-E? I replaced all the springs with a shift kit and that fixed the issue and gave me a slightly more agressive shift pattern. Also could you describe what a hard shift or a slipping shift is in your words so we can be on the same page when I describe what happens tomorrow. In this iteration, the transmission is refined and updated for reliability. I trust the book will be a good read for your son and furnish useful insights.
Also could you give us someway to test the function of the transmission so we would know how to assess any problems? Find the replacement parts you need for a low price at AutoZone through trustworthy advice provided by our helpful staff. With the coloration of fluid, I would do the converter flush along with the unit fluid change plus add a new filter. If there are no codes then another thing that can cause a harsh 1-2 shift is a broken accumulator spring. Could this transmission be a 4L60? A new automatic transmission for Chevy K1500 is the only solution, so shop AutoZone today and rest assured that you're scoring the best deals in the industry, since we provide the right products at the right prices. Moses We will get the fluid and filter changed tomorrow. Make sure the transmission is fully functional before upgrading anything. As for slipping, this is again a noticeable engine revving sound that makes you instinctively back out of the throttle! If it's off especially too full it will really mess up the shifting and the trans itself.
I'm back home now and my son is enjoying the truck I'm sure you will hear from us again. There are a variety of air pressure checks for that approach. When you notice it slips in and out of gears while driving, you need C1500 automatic transmission repair. As I mentioned it seems ok now but occasionally seems to have a hard shift while shifting down. Best way to tell is to scan the computer for codes. I can help with any advice, schematics, etc. Moses We replaced the filter and fluid yesterday and the test ride was the kind you like to take after improvements to you vehicle.
This code may or may not turn on the check engine light. Best at the Holiday Season, good to get your post. The trans fluid is more brown than red and I am getting ready to change it and the filter and if possible the fluid in the torque converter if you think that needs to be done. Gear applies and other direct results are helpful. We can troubleshoot from there.
Honestly I took almost every tool I owned in anticipation for a break down of some type but was pleasantly surprised to travel the entire distance trouble free. I don't know how that trans is controlled cable or vacuum. I should start by saying that I delivered the truck to him and will be visiting for a few more days before returning home. Use our Loan-a-Tool program to borrow any tools you're missing to fix the transmission today and get your truck back in working order. The automatic transmission for Chevy C1500 takes control of shifting the gears so your focus stays on maneuvering your pick-up.