what to check when 98 bravada has dead cylinder? pulled spark plug wire off distibtor and does not change sound of motor . the spark plug is firing
Sep 12, 2010 at 8:57 AM
1998 Oldsmobile Bravada dead cylinder
MICHAEL SHARPE
- MEMBER
- 6 POSTS
Verify spark with a spark tester. If you have strong spark, then you probably have a bad injector.
PS, you definitely don't have a V12. You have a 4.3 V6.
PS, you definitely don't have a V12. You have a 4.3 V6.
Sep 12, 2010 at 9:30 AM
yes 4.3 it is geting spark. how do you replace injector?
Sep 12, 2010 at 9:34 AM
The intake manifold has to come off. You might want to take a compression test before jumping to that conclusion.
Sep 12, 2010 at 9:36 AM
what should compression be?
Sep 12, 2010 at 10:13 AM
They should mostly be over 150PSI but it would have to be well under 100 to cause a miss.
Sep 12, 2010 at 10:15 AM
checked compression it was 40
Sep 30, 2010 at 8:35 AM
Well, that is not good news. Probably a burnt valve or something like that but the heads are going to have to be removed and sent to a machine shop.
Oct 1, 2010 at 12:36 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement
parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.