Question about 1994 GMC Suburban

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When accelerating out from a stand still the engine will rev to a high rpm, not shifting to the next gear. If you let off the gas momentarily, it will then go to the next gear. 2 WD, 1994

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: transmission problem shifting into high

My 97 Jimmy was doing the same thing, codes P0740 & P0753 witch are torqe converter lock up & shift solinoid. I unhooked the wires in the drivers side of the trany and cleaned them with contact cleaner bought at the parts store. I reconected the harness and disconected the baterie for a couple of houres and no trouble since.... 4 days so far Knock on wood........ Hope it helps

Posted on Jul 29, 2008

junkman1249
  • 552 Answers

SOURCE: Engine RPM too high when transmission shifts. Bangs into gear.

check your fluid level when the car is warmed up

Posted on Dec 05, 2008

jonbrown725
  • 73 Answers

SOURCE: 1994 ford ranger extended cab 6 cyl fuel injected 2 wheel drive automatic

This year of ranger had a few flaws, In one case, a break power booster was robbing the vacumm, you can test this by plugging it off and seeing the differance, but you will have limited brakes. This model year had a problem with a vacuum leak on the manifold. You can check these in many ways, but please don't use starting fluid. The rear of the manifold usually on the drivers side where it seals to the block.
Also, in 2 other cases a cracked head has gave me the same problem. It is caused from a loss of vacuum.

Posted on Jan 15, 2009

  • 140 Answers

SOURCE: 2000 GMC Jimmy's RPM's too high when shifting

replace the moduler valve on the tranny, its about $45 good luck keith...

Posted on Mar 21, 2009

  • 13 Answers

SOURCE: high rpm shifting

Does your van have an "EAT" switch -- lower right hand side of instrument panel?

Pressing the switch in changes the shift points by making the transmission shift at a higher RPM.

If the van has the "EAT" switch and it is engaged, try pushing it in again to disengage it.

bikerbc.

Posted on Mar 24, 2009

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when vw started to use the computer controlled gearbox system a criticism was the shift was very harsh,to counter this they made it rev slightly before changing.so that you know the system, try this out....without touching the gas.....put it in d and let the car accelerate to its max speed,stop,then use 1/3rd of gas (keep your foot still)and let it do the same...stop,then,if safe,put your foot to the floor,hard, notice when the car changes gear(revs/speed)then if you drive,only using the first1/3rd of the gas,the cars change pattern will alter to suit.......wierd it is.....

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