1991 Cadillac Allante Spark Plugs

Asked by Jul 20, 2011 at 04:50 PM about the 1991 Cadillac Allante Base Convertible

Question type: Maintenance & Repair

How do you change the spark plugs, on the rear of the engine??

5 Answers

GeminiII
0

You have to remove the intake manifold at the top of the engine.........

D_Yaros
245

My understanding is that the engine cradle has to be loosened and lowered to gain access to the rear plugs. I have never heard of having to remove the intake manifold for access. While neither option is great, lowering the engine eliminates the need for a new intake manifold gasket, proper torque sequencing of the intake manifold bolts, etc.

3 out of 3 people think this is helpful.
aaacar
515

PUT IT UP ON A LIFT ACCESS IS SIMPLE.......AAACAR

1 out of 1 people think this is helpful.
Jason Zane
6,195

on my 89 Riviera, i was lucky enough NOT to need to tilt the cradle. i just used a deep socket and 3/8 drive ratchet but that was a 3.8L V6. V8 could be a different story. those years had more space than 2000 model years.

jas491
30

You will be able to get to the # 2 and #4 plugs from underneath the vehicle. It requires a lot of patience and long skinny arms, both of which I lack. lol

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