Car not starting

Asked by Jun 07, 2017 at 11:14 AM about the 1990 Buick Reatta Coupe FWD

Question type: Maintenance & Repair

Hey guys, I have a 1990 Buick reatta, which I've
spent lot sir hours working on in the past but
basically it had transmission problems so a friend
and I replaced the transmission. Although, not the
best (considering we got the tranny from a pull a
part) but it's way better than it was. So I had a
functioning cluster with the fuel and voltmeter and
all of that working. Well one day I made a trip and
had the car parked and idling and it just shut off.
So after a bunch of looking and poking around, I
found a power steering line had grounded out the
main starter wire. Which once found it made many
functions stop working like cruise control, every
thing on the cluster except the temperature,
speedo, and tach. So I decided to replace the bcm
a couple weeks ago to fix this issue, and nothing
different happened, well about 2 days ago I went
out in the morning to start the car and it tries to
start but won't fire and the battery is draining very
quickly. So I replaced the ignition module and
nothing different, and it has plenty of gas. So I dont
know if I need to put the old bcm back in or not
and I've noticed the relays don't click on and off
when I connect and disconnect the battery. Any
help would be great.

2 Answers


With your history of electrical problems I don't think the standard answers are going to work. On the 3800 engine, if it doesn't start but does crank, that would point to the crank sensor, if it is bad the car will not start. The instrument cluster problem could be a bad ground or something in the cluster (there are 3 circuit boards) You might find another cluster ....1990-1993 Riviera are the same as the Reatta.

1 people found this helpful.

Well I've cleaned all my grounds on the body, and I will try a new cluster. And how do I check the crank sensor?

Your Answer:


Buick Reatta Experts

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    Jason Zane
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