Question about 1998 Chevrolet Blazer

1 Answer

Transmission I just rebuilt my transmission about a month ago it worked fine for a while then i noticed it was like it would shift up and down about a half a second apart if i had the throttle in the right spot. then the other day I was driving and all of the sudden it was like it started slipping. I got it home and hooked it to a scan tool and code P1870 was stored. Now there is like a rattling sound or like a spinning metal to metal contact that comes and goes but it isnt grinding the sound is intermittent and the slipping gets worse when the sound gets louder. It used to run at about 2000 rpm at 70 mph after the problem occured it started to run about 2400 rpm at 70 but the kicker is it doesnt do it all the time sometimes it works fine till it warms up but usually it will slip before the end of the day. the fluid is burned. i think it is probably either the pump or the torque converter but im not sure the pump was dropped when i rebuilt the transmission but i didnt see any major damage to the housing. it is a 1998 4l60e transmission 4x4

Posted by on

  • 8 more comments 
  • Walter Morris Dec 08, 2008

    the trans doesnt work properly at crusing speed and acceleration

  • Walter Morris Dec 09, 2008

    if i cut a seal wouldnt that cause it to mess up from the start. if worked fine for about 1000 miles. i did kinda think that it was the converter. i didnt change the shift solenoid pack and if it was a check ball issue it would have messed up in the beginning and i have been driving it for about 400 miles since it started messing up and the problem isnt getting worse i put some lucas in it and it is actually startin to work fine sometimes untill about 15 miles

  • Walter Morris Dec 09, 2008

    i dont have the money for another trans. my auto teacher said it could be the tcc solenoid i did a road test with a scan tool but i couldnt get it to mess up it just kept workin like it was supposed to

  • Walter Morris Dec 09, 2008

    im not sure if it is a slip now that i think of it the rpms go up but they dont shoot up like it would if it was a slip it still feels like the trans is workin but its in a lower gear i did get a dtc P1870 but i cleared it and it hasnt came back since

  • Walter Morris Dec 09, 2008

    its kinda brown and i had to get a second opinion on the smell because i couldnt tell if it was burned

  • Walter Morris Dec 09, 2008

    k i will try the solenoid first because it is cheaper and there was something like an antidrainback valve that didnt come with the new one i got because i broke the snout and had to get a new one but i didnt think it would hurt because the old one didnt have one of those in it

  • ivanyurkinov Mar 14, 2009

    yes this sounds like the issue i am having . i am looking at the tcc apply solenoid. too. it could have some sludge stopping it from moving properly . i can go for miles with out issue and then it acts like the stall speed is several hundred rpm higher . or is in a lower gear. i know theres a solenoid issue because i have it drop from od to 3rd and it wont go back to od . if i turn the truck off and restart it, it acts fine . there are lots of little holes to be foulded by sludge.i would power the solenoids and clean them out with brake cleaner while they are open and cyclel them several times while sparying the cleaner thru them ....unless you soaked every thing and blew out every passage and ensured the were spotless this would happen ... i was waiting for a secon opinion but have yet to get one . i never dismantled the trans and it the same as yours. also if you did not flush the cooler lines and all the sludge out of it it will stay there untill it causes a problem .like the one we are having
    you said the fliud was dirty ,so its possible theres still **** in the system


  • yadayada
    yadayada May 11, 2010

    No matter what the problem the trans needs to come out be torn down to see what u did wrong, why not buy an exhcange unit?

  • yadayada
    yadayada May 11, 2010

    Sounds like a Valve body issue, are you sure you got all the check balls and such back in correctly? did you replace the solenoid shift pack? You may have also cut the O ring on the pump housing, if it leaks you will get slipping, as the clutches wear from low pressure the problem gets worse fairly fast.

  • yadayada
    yadayada May 11, 2010

    Shrink down the problem description please.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,450 Answers

THE NOISE IS PROBABLY CONVERTOR. could have also cut a seal during assembly with fluid burnt and slipping it is gonna have to come out and be torn down

Posted on Dec 08, 2008

  • 2 more comments 
  • TripleTauto
    TripleTauto Dec 09, 2008

    a cut seal can show up immediatly or down the road. have seen both ways.tcc solenoid is not gonna cause tranny to slip it can cause the up down issue you feel.

  • TripleTauto
    TripleTauto Dec 09, 2008

    HOW BURNT IS FLUID?

  • TripleTauto
    TripleTauto Dec 09, 2008

    kinda brown in a month is not good!!!!! just guessing i would lean towards torque convertor.

  • TripleTauto
    TripleTauto Dec 09, 2008

    good luck hope it fixes it.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Intermitente starting problems & transmission seemed to go out the other day while driving it


sounds more like an engine issue off the top of my head. The transmission runs off the vacuum from the engine. If the engine timing chain is stretched it will run then not run, have problems idling and shifting and won't charge the battery properly. anyone who has done one before could probably tell you just by the sound of the engine running.

Feb 26, 2014 | 1998 GMC Jimmy

1 Answer

I just had my 700r4 tranny rebuilt again! The guy I purchased my truck from just had it rebuilt 3 yrs ago. It had a hard second shift and he told me that was from the shift kit they put in it. Well, that...


The throttle valve cable controls the transmission pressure. Adjusting this cable is the most important step when installing a 700R4 or 200R4 transmission.

Aug 10, 2010 | Chevrolet 1500 Cars & Trucks

1 Answer

I own a 2003 Mazda MPV. I have owed the van for 2 years when first purchased after a few months I started to notice a faint noise from the back of the car when I when shift from 1-2 gear. Well I brought it...


Most transmission shifter ( where you shift) has a linkage control to shift gears in the transmission. Those joints from the linkage have bushings made of rubber. Once these rubbers were worn down and torn, the noise from metal friction from linkage can give you that intermittent noise. When the gap from the linkage joint enlarges in lieu of the bushing space, it causing the engagement of shifting is off from original position that was why you are experiencing "binding in other gears"
Have a different shop to check out these linkage control bushings and replace them. The bushings are cheap and it probably takes about 2 hours the most to replace them. This will save you a lot of money on spending on unnecessary repair. Good Luck.

Oct 14, 2009 | 2003 Mazda MPV

2 Answers

2003 Chevy Impala transmission


Did you have it serviced or rebuilt, If you had it rebuilt I would take it back to the trans shop for warranty repairs.
If they just changed the trans filter I don't think it would cause your problem.You just have bad luck with the slipping trans

Jul 25, 2009 | 2003 Chevrolet Impala

1 Answer

Transmission neutralizes when taking off in drive.


That's probably why it's lurching. It's try to shift down. The valve body is a reasonable suspect. Was the balve body yorgued? Are the ck balls in the proper circuits? If the valve body has any loose bolts, the gaskets need to be replaced again. Good luc

Jun 08, 2009 | 2004 Ford F150

2 Answers

Transmission problem


car out of cruise control flutters or runs rough from 45 mph to 55 mph and once over 55 mph runs smooth. I notice from 45 to 55 the rpm guage moves with flutter or rough running engine. when i put in cruise control it smooths out.

Sep 12, 2008 | 2000 Chevrolet Blazer

Not finding what you are looking for?
Cars & Trucks Logo

280 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

61037 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...