Check engine light flashing, car runs fine

2frustrated
0

Asked by 2frustrated Dec 06, 2012 at 11:10 AM about the 1995 Buick Roadmaster 4 Dr Base Sedan

Question type: Maintenance & Repair

I have a 1995 Roadmaster that I bought from the original owner. Car had handycap hand controls that I removed. Car has 56000 miles but was not used much for the last few years. The cars starts, runs, and drives and the only running problem that I can feel is a surging when coming to a stop. This is a motor issue and not a brake pulsation. Possably a misfire when starting out cold but not real bad. My problem is that the Check Engine light is on and flashing all the time. I cleared the code by disconnecting the battery but shortly after restart the light came back on flashing. I took it to a local parts chain but the man tryed a couple times to scan it and came up with no codes and a message saying somthing like cannot connect with computor. I also tryed jumping A & B terminal in the ALDL connector but when I turn the key on I get nothing. The Service engine light does not come on and flash codes like it should and it will not light at all until I remove the jumper. I suspect that I am having a computor problem but I am not sure. Can you help me???

2 Answers

John Saffrahn
20,915

The check engine light flashing is because the catalytic converter is in danger. Usually a misfire is the cause of this due to the raw fuel dumping into the exhaust during the misfire. The dummies at the local parts store are extremely friendly and help full and have great intentions but they will try to sell you spark plugs for a diesel if you ask for them. The reason their scanner plugged in was because its the correct obd 2 plug on your car but the car is a 95 therefore it is an obd 1 and their scanner only has an obd 2 interface on it. You need a scanner that can pull obd 1 codes and jumping it won't work since it has an obd 2 plug.

1 out of 1 people think this is helpful.
redd3000
0

How u fix that

Your Answer

Add photo

Related Questions

Search Buick Roadmaster Questions

Buick Roadmaster Experts

#1 DanR63
DanR63
Reputation 230
#2 dandyoun
dandyoun
Reputation 140
#3 Tom Demyan
Tom Demyan
Reputation 120
View All

Related Models For Sale

Used Chevrolet Caprice"
125 listings starting at $2,895
Used Chevrolet Tahoe"
702 Great Deals out of 24,541 listings starting at $1,955
Used Buick Park Avenue"
20 Great Deals out of 573 listings starting at $999
Used Lincoln Town Car"
47 Great Deals out of 2,250 listings starting at $1,495
Used Cadillac DeVille"
42 Great Deals out of 2,159 listings starting at $1,650
Used Chevrolet Impala"
1,232 Great Deals out of 57,425 listings starting at $1,295
Used Pontiac Firebird"
15 Great Deals out of 638 listings starting at $2,999
Used Chevrolet Camaro"
476 Great Deals out of 34,915 listings starting at $1,595
Used Buick Regal"
120 Great Deals out of 8,093 listings starting at $988