After a long drive, especially in warm weather my 1999 Silverado shifts really hard going from first to second..then it goes away ..might be a heating problem?

Question 1

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Why does my 1999 Chevy Blazer shift really hard into second gear without the RPM's increasing like the tranny's slipping?

Shifting hard broken modulator valve on the trany itself normally there a vacuum line connected to it

Mar 13, 2015 • 1999 Chevrolet Blazer

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My 04 silverado v8 5.3 sounds like it's slipping when it shifts. the slippingor vibration noise goes away after you drive about 10 miles. seems to shift fine and no noise after driving awhile

bad spark plugs and plug wires

Sep 17, 2012 • 2004 Chevrolet Silverado

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I have a 1999 Chevrolet Silverado with automatic transmission. When the transmission is shifting from first to second gear it jerks really hard like a thrust when changing.

have it scanned, probably has a code 1870 (transmission component slipping)
means torgue converter is slipping beyond specs, actual casue is valve body is wore out causing pressure problems

Jun 03, 2011 • 1999 Chevrolet Silverado 1500

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1answer

Transmission shifts very hard after coming off the highway when the weather is warm

it sounds like your tranny fluid is very thin and needs replaced when hot out thins the fluid even more

Sep 13, 2010 • 1999 Chevrolet Silverado 1500

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1answer

Hard shifting manual 5 speed transmission in warm months of summer and spring. feels like linkage will bend before going into first and second gear.

2007 pt crusier Hard shifting manual 5 speed transmission in warm weather

Apr 06, 2010 • 2006 Chrysler PT Cruiser

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1answer

Transmission shifts hard when slowing down to stop

Dirty trans filter,stickey trans solinoid,or your torque converter is not unlocking.If you can due it yourself try running some trans flush then replace the filter.

Jan 02, 2010 • 1999 Chevrolet Silverado 1500

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3answers

I have 1997 chevy Z-71 sometimes on startup the engine makes a knocking sound for about 3 seconds and goes away. I dont know if I have a major problem or not can you help?

I think it is normal for these vehicles. My '97 Tahoe did it also and I'd heard it was normal and not to be worried about. Kind of sucks but I had 150,000 miles on mine and it was fine.

Good luck.

Aug 30, 2009 • 1999 Chevrolet Silverado 1500

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1answer

99 silverado 1500 shifts hard after its been driven a while

u need to have the system tested for trouble codes, but u most likely have a defective trans 1-2 shift solenoid. to replace this u will need to pull the trans pan off the solenoids are attached to the valve body, also check the trans connector for water or corrosion.

Jun 30, 2009 • 2000 Chevrolet Express Cargo

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1answer

Once truck is started if i drive it has a lag

I would have the computer scanned ( no SERVICE LIGHTS right ? ) looking for an errant coolant sensor not telling the computer to give your vehicle a bit RICHER ( a little bit more fuel ), since it does start. Just has POOR cold drive away. Hope this helps

Apr 12, 2009 • 1999 Chevrolet Silverado 1500

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1999 Grand Cherokee cold shifting problem

What is happening is your loosing pressure at the front servo. The seal round it is swelling up as it warms up and the problem goes away. The best fix is to rebuild the transmission. If that is not in the budget, there are some cheaper solutions. First you could add some trans tune. Any parts store will have some variation of it. If that does'nt work a very small amount (a cap full or so) of brake fluid should. It will cause the seals to swell. I would recommend,after adding brake fluid, having the transmission flushed after driving the truck 50-100 miles. Hope this helps.

Feb 08, 2009 • 1999 Jeep Cherokee

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Anonymous

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Posted on Oct 15, 2010

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The hard shifting you are experiencing is caused by slight wear in the valve body in the transmission. It doesnt mean your tranny is bad though. This hard shift will only usually occur when the transmission temp reaches 93 degrees. So you could rebuild the valve body or sometimes a tranny flush is a temp fix.

Justin Olson Oct 10, 2011

I am having the exact same issue. I came off the highway after a long drive and it shifted very hard from 1st to second. Parked it for twenty minutes, and it drove fine. It has happened once since. What did you end up fixing or to what extent did you go? Thank you ahead of time.

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Anonymous

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Posted on Sep 22, 2010

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This may sound silly, but when was the last fuel filter? If you have a partial fuel retriction, it could seem as though the trans has issues. The more you drive, the more the pressure could decrease, causing strange shift issues. Thanks...

Anonymous Oct 10, 2010

I dont think the fuel filter is the problem. I have 2000 silverado and mine shifts hard at times in first and second and then goes away. I just changed my fuel filter two months ago and it still does it. I think it may be an electronic glitch coming from the tow/haul switch on the shifter.

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After a long drive, especially in warm weather my 1999 Silverado shifts really hard going from first to second..then it goes away ..might be a heating problem?

2 Answers

Anonymous

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Related Questions:

Why does my 1999 Chevy Blazer shift really hard into second gear without the RPM's increasing like the tranny's slipping?

My 04 silverado v8 5.3 sounds like it's slipping when it shifts. the slippingor vibration noise goes away after you drive about 10 miles. seems to shift fine and no noise after driving awhile

I have a 1999 Chevrolet Silverado with automatic transmission. When the transmission is shifting from first to second gear it jerks really hard like a thrust when changing.

Transmission shifts very hard after coming off the highway when the weather is warm

Hard shifting manual 5 speed transmission in warm months of summer and spring. feels like linkage will bend before going into first and second gear.

Transmission shifts hard when slowing down to stop

I have 1997 chevy Z-71 sometimes on startup the engine makes a knocking sound for about 3 seconds and goes away. I dont know if I have a major problem or not can you help?

99 silverado 1500 shifts hard after its been driven a while

Once truck is started if i drive it has a lag

1999 Grand Cherokee cold shifting problem

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1999 Silverado 1500

Why does my 1999 Chevy Blazer shift really hard into second gear without the RPM's increasing like the tranny's slipping?

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After a long drive, especially in warm weather my 1999 Silverado shifts really hard going from first to second..then it goes away ..might be a heating problem?

2 Answers

Anonymous

Anonymous

Add Your Answer

Attachments: Added items

Related Questions:

Why does my 1999 Chevy Blazer shift really hard into second gear without the RPM's increasing like the tranny's slipping?

My 04 silverado v8 5.3 sounds like it's slipping when it shifts. the slippingor vibration noise goes away after you drive about 10 miles. seems to shift fine and no noise after driving awhile

I have a 1999 Chevrolet Silverado with automatic transmission. When the transmission is shifting from first to second gear it jerks really hard like a thrust when changing.

Transmission shifts very hard after coming off the highway when the weather is warm

Hard shifting manual 5 speed transmission in warm months of summer and spring. feels like linkage will bend before going into first and second gear.

Transmission shifts hard when slowing down to stop

I have 1997 chevy Z-71 sometimes on startup the engine makes a knocking sound for about 3 seconds and goes away. I dont know if I have a major problem or not can you help?

99 silverado 1500 shifts hard after its been driven a while

Once truck is started if i drive it has a lag

1999 Grand Cherokee cold shifting problem

Not finding what you are looking for?

1999 Silverado 1500

Why does my 1999 Chevy Blazer shift really hard into second gear without the RPM's increasing like the tranny's slipping?

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