94 Buick road master overheating

10

Asked by Guru9WH59R Feb 28, 2021 at 06:46 PM about the 1994 Buick Roadmaster Limited Sedan RWD

Question type: General

While in idle and within minutes my engine
overheats.ac works fine as well as heater,the
reserve is full of coolant and both fans work.I got
the codes 26,27,44,55 when I dude the diagnostic
through the Hvac controls.

4 Answers
155,245

james answered 3 years ago

Codes 26 and 27 are quad driver error codes. Code 55 is an ECM failure code. When you replace the ECM transfer the PROM from the old ECM to the new one. Hope that helps! Jim

1 people found this helpful.
Mark helpful
10

Guru9WH59R answered 3 years ago

Thanks,I’m really trying to learn to all this on my own through YouTube so I will be looking that helpful info up to see can I do it or just are it to a shop

1 people found this helpful.
Mark helpful
155,245

james answered 3 years ago

You're welcome. Glad to help! You might consider getting a factory shop manual for your Roadmaster. It will have a wealth of information about service and repair. Try Ebay for a good used copy or Faxon Auto Literature in Riverside CA for a reprint. They have a website. Jim

Mark helpful

Your Answer:

Related Questions

Roadmaster

Looking for a Used Roadmaster in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Buick Roadmaster Questions

CarGurus Experts

  • #1
    Rancherodan
    Reputation
    1,220
  • #2
    Rowefast
    Reputation
    380
  • #3
    Gene Arnett
    Reputation
    290
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Cadillac Fleetwood
1 listing
Used Lincoln Town Car
2 listings
Used Buick LeSabre
1 listing
Used Chevrolet Impala
8 Great Deals out of 125 listings starting at $3,495
Used Chevrolet Tahoe
20 Great Deals out of 774 listings starting at $7,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.