8.0
pretty badTypical Repair Cost:
$635.00
Average Mileage:
99,016 miles
Total Complaints:
6 complaints
Most common solutions:
- replace intake manifold and gaskets (5 reports)
- new engine (1 reports)
engine problem
Helpful Websites About 1998 Pontiac Bonneville intake manifold leak
2009Sep 01
Bonneville SE 3800
- Automatic transmission
- 98,000 miles
I bought this car four years ago and had to replace engine within 6 days. Dealer said "as is" sale. I put a Jasper engine with two year unlimited mileage. Ran great for four years, motor had 40,000 miles on when it was put in, now the motor has almost 100,000 and intake manifold went again and motor is completely shot...AGAIN! GM what do you expect! Use some of the bailout money on customer relations and cover this blunder with the 3800!!!
2006Mar 06
(reported on)Bonneville SE
- 52,000 miles
I NOTICED COOLANT RESERVOIR LOW BUT I COULDN'T SEE ANY LEAKS I FOUND OUT THE INTAKE IS MADE OF PLASTIC THE ONLY FIX IS TO R&R AND HOPE FOR GOOD LUCK I. IVE GOT THAT GREAT GM FEELING
A D V E R T I S E M E N T S
2006Oct 19
(reported on)Bonneville SE 3.8L V6
- Automatic transmission
- 47,094 miles
I can't believe that Pontiac would allow this very common, easily prevented problem with such a great engine to go unaddressed! Pontiac used a plastic part where any intelligent individual would realize a metal part was needed. This is piss-poor design and construction and the reason that I will not buy an American-made vehicle again, and I've never driven anything but American. But check this out - my mechanic found out that the manufacturer's replacement part has the same problem that caused the original to fail! Had he put that part on my car, the same problem would have happened again, and this time, the engine would probably have to be replaced. The aftermarket part has been reinforced WITH METAL to prevent this problem. At least someone's thinking up.
2006Jul 11
(reported on)Bonneville
- 89,000 miles
This is just the initial estimate. The car is in the shop at this time. I am hoping there are no major ramifications from the coolant getting into the engine. I guess we will have to see. This is pathetic that all these cars are having this problem. I can see from 'googling' the net I am far from the only one. Shame on GM for not recalling! I am going to have to stick with Dodge from now on out I guess. (my 96 Dodge is freakin' indestructable.... ugly..... but solid as a rock)
2006May 09
(reported on)Bonneville SE
- 98,000 miles
I do a lot of driving for my business and have had to replace the intake manifold twice and I believe now for the third time. I have over 200000 miles on the car now but my 1992 Bonneville has 300000+ miles and have never had this kind of problem. I wonder if there is some kind of defect in the design. At one time I thought I might buy another Bonneville now I don't think I would.
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A D V E R T I S E M E N T S
2009Sep 28
Bonneville SE
SON OF A BONNEVILLE!!! I've already paid a small fortune to fix this problem once...and only 5 years ago!@!! How many times do I have to deal with this piece of JUNK!
Jennifer P.
Berne, IN, USA
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