Question about 1988 Chevrolet C1500

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1988 chev trans takes high rpm to shift from 1st to 2nd and some times it wont down shift when you slow down and hit the gas again

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Check the adjustment of the transmission T.V. cable. Sometimes they also stick. Try driving it at 30. Shift to Neutral, stab the gas pedal to the floor quickly a couple of times. Then shift back to drive. Then see if it shift normal.

Posted on Jul 14, 2010

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Posted on Jan 02, 2017

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2007 mustang gt have engine knock problem when going from 1st to 2nd gear at 5000 rpms?


5.000rpm's high revs and you run into problems with valve bounce ( hitting pistons) ,ring slap, gudgeon pin knock, big end noise and possible main bearing noise . You may also be getting a hydraulic lock in the hydraulic followers that is holding the valves open too long. Unless the engine has been specifically built for these rpm's any loose ,worn on unsuitable part will cause problems I am thinking that you have around 100.000 miles on the clock after 7 years and the motor is not young Ford V8 engines specifically built for a 500 klm race are limited to 5.500 rpms because they destroy the timing chain if driven over that speed .

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1988 Chev. Van G30, auto. Trans., shifts fine from 1st to 2nd, but trying to go into high(3rd) gear takes a very long time getting into 3rd. gear. You can feel the holding back then after the speed picks...


Try using Lucas transmission fix. This product works great. Check your tranny fluid first (warm engine in park) it must be red and not black (contaminants) and not light pink and foamy (water), both require a visit to a transmission shop.
Before adding the Lucas, if your tranny level is normal, you MUST remove the same amount of tranny fluid as the amount of Lucas you are putting in. You can use clear plastic tubing that will fit into the fill tube and siphon it out. It could also be that your detent cable needs to be adjusted. You will need to get instructions on how to to this. It is fairly easy to adjust. It will be a cable connected to the throttle body.

Oct 30, 2013 | Chevrolet G30 Cars & Trucks

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2001 Isuzu Trooper 4wd automatic trans. It will shift ou of 1st at about 20 mph into 2nd then loses power, rpm's drop until it slows to about 10mph then down shifts back to 1st. Any ideas why?


Sounds to me that your transmission is put itself into what is call (Limp Mode). This happens when the transmission fluid in the trans hydraulic valve body located on the bottom and in the trans pan are not within the parameters of the transmission computer. You can remove the trans pan and gasket to check for metallic material in the bottom of the pan. There is normally a strong magnet in the pan catch the material so I can't move freely through the transmission itself. It only takes a very small piece of foreign material to stop the flow of the valve body fluid. I would first take it to somewhere that had a automotive diagnostic scan tool that can read transmission codes to see if there are any active codes. Next you can drop the transmission pan yourself and look for material in it. Basically do a visually inspection and service the transmission fluid, gasket, and filter. Remember, all a automatic transmission is a extremely complicated fluid pump. If its pumping trans fluid properly it's probably working just fine. Been when the trans fluid gets hot, scorched, and stops moving. It will not work. Hope this helps

Nov 28, 2012 | 2001 Isuzu Trooper

1 Answer

I have a 2004 chevy 1500 have already rebuilt the transmission two time and now it slipping again here what its doing i can take off fine but when its time to shift from 2nd to 3rd the rpm go up so i will...


not sure if it will make much difference but there are sensors on the trans that can be bad and you really have no way to tell it. or a wheel speed sensor or could even be a dirty clogged trans filter but I am leaning more towards the sensors. I can bet when they rebuilt the trans they just reused the same sensors and thats why you still have the same problem

Jul 16, 2012 | Cars & Trucks

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98 Buick Regal transmission shifting problems?


take it a trans shop for a pressure test

Oct 04, 2017 | Buick Regal Cars & Trucks

2 Answers

I just purchased it today. The RPM's goes up to 4


You'll want to doublecheck & make sure the Overdrive is turned on. That's a high rpm for 55, even high I believe for Interstate cruising at 65-70.

Possibly get back to the dealer immediately if it's not the Overdrive switch.

There are issues with some models that concern the RPM staying around 4,000 even at idle & under the right circumstances, a transmission won't shift as it should based upon engine & driving signals that the Trans computer uses to determine when to shift.

Check your fluid first & remember, Overdrive doesn't work until the fluid reaches a certain temperature.

good luck

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Lincoln Navigator transmission problem


check and replace filter and fluids just like oil it tends to burn up and blacking and needs to be changed and flushed checking your tranny fluid it should be a red color not a dark red or with a black tint

Jun 25, 2009 | 2003 Lincoln Navigator

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