Question about 1986 Chevrolet Chevy
This is a mechanical linkage system so if it goes in all forward gears has park and neutral but no reverse and the fluid level is full then you have a bad transmission even though its new it does happen.you will have to get another new trans to replace it.
Posted on Mar 02, 2012
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
If you have no reverse then yes it needs to be rebuilt. as far as the whining it could be in one of the differentials. or in trans? just depends on where you hear it
Posted on Dec 08, 2008
Are you getting the check engine light? If so the electronics may have gone out. You may not need a rebuild but you won't know till you pull the oil pan on the transmission and inspect the contents. You may also have lost the neutral safety switch. It is mounted on the drivers side of the transmission. Check those out first and let me know what codes you get.
For Ponchoboy; the clunking and hissing you hear are teminal root causes. Drop the oil pan and if it has a lot of filings and metal it is time for a rebuild.
Hope this helps; Rate me highly;
Posted on Feb 09, 2009
It's either your servo, or your bands.
Either way, the tranny needs a good cheap shop repair.
I'd just get a warrantied salvage yard tranny if I were you and save a few hundred bucks.
Posted on Mar 07, 2010
Before guessing at transmission problems, check the fluid level (car warmed up, engine running in Park on level ground) and have the PCM scanned for trouble codes FIRST.
Secondly, put a line pressure gauge (or visit a local trans shop) on the pressure test port and go for a drive to verify proper line pressure. Base pressure at idle in P,N,OD should be around 70psi and around 140psi in R. Max line pressure should be at least 190psi at WOT in 1st or 2nd, 225psi is optimum. If base pressure is low, trans or pump is worn out. If max pressure is low, check EPC solenoid. If reverse is slow to engage, and line pressure does not come up to at least 130psi in reverse, replace the boost valve with a Transgo 0.500" boost valve (easy fix in pan).
Slow, slipping or no reverse: “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell. It is possible to remedy a fluid problem by removing the checkball from its cage in the case in the rear of the trans may help (must remove valvebody), or adding a high-viscosity additive such as Lucas Transmission additive or other seal restorer product. May also have worn boost valve (can replace in the pan).
Soft shifting, gradual performance degradation: Poor line pressure rise due to leaking boost valve, clogged EPC filter screen, failing EPC solenoid, or worst case: leaky seals throughout. Transgo HD2-C kit fixes first two without removing trans. Seal restorer may fix last problem, but probably R&R. Also try a transmission flush with BG brand products (Firestone stocks it).
No movement in any gear: pump failure, or total loss of fluid. R&R, or refill pan and find the leak. If out of fluid, avoid running the engine until the trans is refilled to avoid pump damage. To check for pump failure, check fluid level with the engine off, then start the engine and recheck fluid level. If level does not go down when engine is running, the pump is broken.
1-2 or 2-3 shift is slow/soft above part throttle: Trans is on its way out. R&R
Good luck and start with checking your transmission fluid level. Thank you for using Fixya
Posted on Mar 16, 2010
Tips for a great answer:
Jan 23, 2016 | Cars & Trucks
Feb 28, 2015 | 1997 Chevrolet Blazer
Mar 06, 2014 | Mitsubishi Galant Cars & Trucks
Nov 28, 2011 | 1995 Chevrolet C/K 2500
Mar 07, 2011 | 2000 Chevrolet Silverado 1500
Jan 28, 2010 | 1986 Chevrolet S-10 Blazer
Jan 03, 2010 | 1989 Ford F 250
Jan 20, 2009 | 1986 Chevrolet K1500
198 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: