Saturn automatic transmission problem

Try adding some Lucas Transmission Stop Slip it can help with hard shifting. Do not over fill

Did you resolve this issue. I'm now having an identical issue.

Don't use Lucas. It the line pressure sleeve in the transmissions valve body. Buy a sonnax updated valve body on ebay for 200$ . had same issue with my saturn sc1.

I have a 2001 sc1 saturn when I put it in gear it jerKS and shifts hard even when I slow down it jerks people has told me it was the shift solniod where can I buy one at and the part number for it and the price for one

There is not a solenoid for this type of vehicle. I was told the same thing for mine and when I went to the parts store to get that part they told me to do a tranny flush.

There is actually 5 solenoids in the valve body of the transmission. They are all interchangeable. The GM part number is 21003344. You can pick them up for around $50 online if you google that number.

My 2002 Saturn which I bought for $150 just started almost popping into neutral and then slamming into drive really hard but if I put it in 3rd gear everything seems fine so I guess there goes the gas mileage I'm trying to reverse slam which is putting it in reverse chocking the wheels and letting it run for 30 minutes is the reverse solenoids don't get used very often and supposedly that might fix the problem but I just started 25 minutes ago I'll let you know if it works

you have to remove the top transmission pan under the battery and the valve body comes out then you need to find the bad solenoid and replace it.using a cheap harbor freight volt meter will do the job. it will shift hard a few times after you replace it just until the fluid runs through the tranny and it will be fixed.Sounds complicated but i have bought so many Saturn's back when they were hot sellers at the auction and 9 out of 10 times it worked.sold over 100 in case you were wondering. I wouldn't use additives unless last resort.

How many Solenoids does a 2001 Saturn SW1 have it will pop start and stay running but will not start with the key I’ve change my starter I put a new fuel pump in and you feel tank filter still the same result any answers

I had the problem now its fixed. You have a valve shift body on the automatic trans. It has a small piston or two that move back and forth. The valve body is aluminum and the piston is steel. Wear around 125k to 175k miles this starts happening. The transmission guy near me fixed it. They have an after market valve body that is bored and a steel sleeve inserted. Car has 217k miles on it now with no problem.