A904 sluggish acceleration in drive - Transmission Problems


	Auto Repair Home	SEARCH POSTS	WHO'S ONLINE	LOG IN

Automotive Repair

Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:
  Login
  Sign up here!

Latest Forum Post

mdma pills for sale : WhatsApp +33758633852

ketamine, 4-MMC, MDPV, methylone, amphet...

Buy Nembutal Oral Solution Pentobarbital.. WhatsApp +33758633852

order nembutal online in Germany (WhatsA...

Drive Shaft Repair

I have a 2015 Chevy Traverse AWD. The fr...

2006 Toyoto Camry XLE Driver Side Electric Window Trouble

Hello, Looking for a little brain help ...

Tierod end change caused some kind of leak

Hello so I just took my car to the nearb...

2011 Dodge Nitro OBD scanner seems to drain battery in 10-20 minutes

When I bought this car in summer 2023, a...

Grounding Cable, 2017 Jeep Renegade Trailhawk

The Cable that connects my negative batt...

Rough Idle (Found new thing)

Hi everyone. First of all sorry for bad ...

equipment

hey yall. im a first year engineering st...

HELP

I have a 1956 1/2 ton panel truck, 69 35...

A904 sluggish acceleration in drive

Sign up here!

Email This Post

Auto Repair Home>> Automotive Repair>> Transmission Problems

kmars68
New User

May 20, 2010, 1:04 PM

Post #1 of 3 (1735 views)

A904 sluggish acceleration in drive	Sign In

1978 Dodge Aspen 225-6 a904

When I put in Reverse it works fine but when I put it in drive it has very sluggish performance. I thought it was the brakes grabbing at first but eleminated that. Replaced radiator about 2 months ago. tranny was rebuilt about 3 years ago with low miles (3000 miles).

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 20, 2010, 3:55 PM

Post #2 of 3 (1727 views)

Re: A904 sluggish acceleration in drive	Sign In

Try manually pulling the shifter down to 1st gear and see if that makes a difference.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 20, 2010, 10:00 PM

Post #3 of 3 (1724 views)

Re: A904 sluggish acceleration in drive	Sign In

1978 Aspen 225! Like the show "Cats" - Memories...........

Seemed like everyone I knew bought one of these back then. Near all had carb issues difficult to overcome and would starve for fuel like an under pressure/volume fuel pump.

Weak spots I recall were carb base gaskets, intake to manifold leaks and the carbs. Smile, gutless wonders and wicked fuel pigs but wouldn't quit with a hand grenade thrown underhood!

Some solutions that helped were raising idle 100 RPM over spec and eliminate any sign of vacuum leaks. Other hit or miss may-bees with some miles were timing chains, nobody ever adjusted those mechanical lifters on a schedule, distributor gear but that was run or not,
ballast resistors, brushes in alternator (actually on outside!) and voltage regulators.

Hated to play with OE specs but advancing timing just a tad, the idle and depending on what carb is on it now if adjustable make the accelerator pump a bit faster to apply extra fuel. This was an issue with the late "slant six" in cars and as I recall less issues when used in the trucks,

T

Email This Post

Search for (options) Privacy Sitemap