kennyj4
Amateur
Joined : 2007-08-16
Post Count : 21
Merit : 0
 | | Subject: Error Code P1870 Thu Nov 29, 2007 3:29 pm | |
| I've had an 1870 code for quite some time. The car feels like it has no power in 1st gear and the exhaust is heavier than normal. After driving I can smell a burnt smell.
Any thoughts? I've changed teh transmission fluid already and used seafoam to clean it also. | |
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oldsman105
Junkie
Name : Enrique Patino
Age : 39
Location : Queens, New York City
Joined : 2007-01-24
Post Count : 756
Merit : 10
| | Subject: Re: Error Code P1870 Thu Nov 29, 2007 3:49 pm | |
| P1870 Trouble Code; "Transmission Componet Slippage"
What year is the Riviera?
I think that trans is on its last legs | |
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kennyj4
Amateur
Joined : 2007-08-16
Post Count : 21
Merit : 0
| | Subject: Re: Error Code P1870 Thu Nov 29, 2007 5:24 pm | |
| Its a '96 with 123,000.
Other than having no power when I first accelerate it runs fine. | |
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Mr.Riviera
Expert
Name : Matthew
Age : 38
Location : Florida
Joined : 2007-01-17
Post Count : 4394
Merit : 101
| | Subject: Re: Error Code P1870 Thu Nov 29, 2007 5:29 pm | |
| check for a vac leak around the lines that go to the front of the tranny.
how does the fluid look? level? _________________ 1996 with 254k miles, L32 4" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs. -RIP AMG C400 White on black. Stage 2 w/E30 - 11.9@117 -daily  | |
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kennyj4
Amateur
Joined : 2007-08-16
Post Count : 21
Merit : 0
| | Subject: Re: Error Code P1870 Fri Nov 30, 2007 12:00 pm | |
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Jason
Aficionado
Name : Jason
Age : 41
Location : Comox, BC, Canada
Joined : 2007-01-23
Post Count : 1378
Merit : 66
| | Subject: Re: Error Code P1870 Fri Nov 30, 2007 1:19 pm | |
| on the 1996 4L60e, to fix the 1870 code we stake the TCC regulated apply valve in the full-open position, which eliminates the PWM function. With the pwm function locked down, it then functions like a regular lockup. You don't need to reflash the PCM.
Don't know about the 4T60... I suppose it would be similar but you may want to check it out. THe 4L60e transgo shift kit addresses the issue. I don't know if the 4T60e transgo kit addresses it, butit includes the PWM valve, lock-up regulator valve & bushings. | |
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Riviera96
Amateur
Joined : 2007-01-21
Post Count : 21
Merit : 2
| | Subject: Re: Error Code P1870 Sat Dec 01, 2007 9:46 am | |
| With a 123000 miles you might as well spend your time shopping around for a rebuild transmisson. | |
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| | Subject: Re: Error Code P1870 | |
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