Riv Performance
Would you like to react to this message? Create an account in a few clicks or log in to continue.

The 8th Gen Riviera Resource
 
HomeDashboardLatest imagesSearchRiviera Questions & AnswersWrite-Ups IndexRegisterRelated LinksLog in

 

 Problems with the 307

Go down 
5 posters
AuthorMessage
Straighteight
Member
Straighteight


Age : 90
Joined : 2007-01-22
Post Count : 66
Merit : 1

Problems with the 307 Empty
PostSubject: Problems with the 307   Problems with the 307 EmptyFri Jun 18, 2010 4:19 pm

I have had just little problems that are starting to add up.
Engine idle at a stop light from slightly fast to just right to too slow
Sometimes downshifting coming to a light. Seems to hang in third, and then at last minute will do the 3-2 and finally the 2-1.
Last night for the first time it shuddered when up shifting at about 15mph or so.
Trans oil appears clean and clear changed at 14,000 or so, now showing 37,000 miles.
Thought it might be a solenoid, or a front mount, part number 25511570 as I have heard they do go bad.

Am looking for ideas as to how to proceed at this point.
Back to top Go down
albertj
Master
albertj


Name :
Location : Finger Lakes of New York State
Joined : 2007-05-31
Post Count : 8687
Merit : 181

Problems with the 307 Empty
PostSubject: Re: Problems with the 307   Problems with the 307 EmptyFri Jun 18, 2010 11:41 pm

IDea:

1) how long did it take to rack up the 20,000 miles since your last trans fluid change? If less than 2 yrs consider changing it again.

2) check your fuel (carb/throttle body) intake system. You may need a carb cleaning - could be that the downshifting is delayed because the engine is revving too fast w/o throttle.

3) no reason not to check the mounts, would be nice to have someone who's seen a bunch of them look at yours and comment.

Albertj
Back to top Go down
Eldo
Expert
Eldo


Name : Mark
Age : 59
Location : West Salem, Oregon... FINALLY
Joined : 2009-04-09
Post Count : 3176
Merit : 104

Problems with the 307 Empty
PostSubject: Re: Problems with the 307   Problems with the 307 EmptySat Jun 19, 2010 12:02 am

I'm confused... 307? Carb? Are we talking about a late-model Riv, or an old Chevy with a 307?

I seldom disagree with Albert, but I would say that the longer it takes to rack up the miles, the more often you should change the fluid, regardless of the which car. Fast runup of miles generally means lots of highway running, which is easier on both the engine and tranny. Slow accumulation usually means lots of city driving, with lots more shifting, etc...

In either case, you're getting near my personal 30,000-mile limit, and probably should have the tranny fluid changed.
Back to top Go down
Ship
Fanatic
Ship


Name : Dave
Age : 75
Location : Weymouth, MA
Joined : 2009-01-01
Post Count : 355
Merit : 37

Problems with the 307 Empty
PostSubject: Re: Problems with the 307   Problems with the 307 EmptySat Jun 19, 2010 5:51 am

I believe "Straighteight" is refering to the Olds manufactured 307 ci that was in the early '80's to '85 Rivieras (he posted also on the ROA section of the AACA forum).
Back to top Go down
Straighteight
Member
Straighteight


Age : 90
Joined : 2007-01-22
Post Count : 66
Merit : 1

Problems with the 307 Empty
PostSubject: Re: Problems with the 307   Problems with the 307 EmptySat Jun 19, 2010 8:20 am

Thanks for your responses. Do you reccomend GM or NAPA for replacements?
Back to top Go down
robotennis61
Guru
robotennis61


Name : robotennis
Age : 63
Location : las vegas
Joined : 2007-12-17
Post Count : 5562
Merit : 143

Problems with the 307 Empty
PostSubject: Re: Problems with the 307   Problems with the 307 EmptySat Jun 19, 2010 1:53 pm

GM..
Back to top Go down
Eldo
Expert
Eldo


Name : Mark
Age : 59
Location : West Salem, Oregon... FINALLY
Joined : 2009-04-09
Post Count : 3176
Merit : 104

Problems with the 307 Empty
PostSubject: Re: Problems with the 307   Problems with the 307 EmptySat Jun 19, 2010 3:10 pm

Ship wrote:
I believe "Straighteight" is refering to the Olds manufactured 307 ci that was in the early '80's to '85 Rivieras (he posted also on the ROA section of the AACA forum).

Thanks for the clarification, Ship.

Someone needs to fill out his signature file... hint, hint tongue
Back to top Go down
Straighteight
Member
Straighteight


Age : 90
Joined : 2007-01-22
Post Count : 66
Merit : 1

Problems with the 307 Empty
PostSubject: Re: Problems with the 307   Problems with the 307 EmptySat Jul 10, 2010 7:43 am

Well I guess we can close this out. Think I found the trouble. I replaced the TCC, and filled with fresh fluid, new filter and gasket.
She runs great. I was unable to come up with GM parts and had to go to NAPA got an Echlin switch and NAPA filter and gasket. Parts seemed fresh as contrasted with GM parts that had been drying out on the shelf.

Eldo would like me to fill out my signature file, so would I, Just can't seem to get my info to show. It ain't much. The 98 pictured is stock, and low mileage. The 85 is also stock and low mileage.
Back to top Go down
Sponsored content





Problems with the 307 Empty
PostSubject: Re: Problems with the 307   Problems with the 307 Empty

Back to top Go down
 
Problems with the 307
Back to top 
Page 1 of 1
 Similar topics
-
» some problems with a car i might be getting
» FAQ: Riviera Paint Colors/Codes
» AC Problems..NEED HELP!
» Starts, stutters and stops - sometimes....
» A/C Colder One Side

Permissions in this forum:You cannot reply to topics in this forum
Riv Performance ::   N/A V8 Tech :: Other V8 Engine & Transmission-
Jump to: