My 2005 Pontiac Bonneville is overheating.I can't even find the valve on the radiator.. seems like the coolant is all there.water pump? Thermostat? Where do I begin?

50

Asked by Sep 05, 2013 at 12:40 AM about the 2005 Pontiac Bonneville SLE

Question type: Maintenance & Repair

SLE/ hose from radiator has alot of
give while overheating.

4 Answers

okay....there are a lot of factors here---the fact that you cannot find the petcock is normally front and center, but that's beside the point...when doing a coolant flush (sounds like you may have to on account of having tap water in that) you'll simply remove the lower hose and all the coolant (well most of it) should come out and be captured into five gallon buckets for recycling at the auto parts store...yes, even if it's rusty....once having rid the system of rusty coolant, change the thermostat...you'll find this one at the end of the top hose under the "water neck" get a 195 T-stat replacement~...next give the waterpump a jiggle and inspect the bottom shaft input...there's a "weep" hole that will let coolant out and drip and eventually will cause overheating....Hope to god's someone hasn't put HOSE water in a panic after overheating such that the block will be cracked and the coolant will RUST everything in it's path immediately and must be changed with 50/50 ethylene glycol and distilled water mix~ ...there's a start...once filled up we will check the efficiency of the radiator and it's ability to put the fans on when boiling temperature is reached~ a spot thermal gun is handy to find the hot spots~

2 of 2 people found this helpful.
Best Answer
50

Thanks. . The thermostat was a little warped I think on one side. The coolant was VERY dirty with cloudy stuff floating in it. Still running a little on the hot side I think (200)?

2 of 2 people found this helpful.
7,415

200 is about right ..195-205 is normal

2 of 2 people found this helpful.
10

Where is the fuel filter located ?

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

Bonneville

Looking for a Used Bonneville in your area?

CarGurus has 530 nationwide Bonneville listings starting at $1,799.

ZIP:

Search Pontiac Bonneville Questions

Pontiac Bonneville Experts

#1 ticklemedaly
ticklemedaly
Reputation 390
#2 Js08016
Js08016
Reputation 360
#2 dandyoun
dandyoun
Reputation 360
View All

Related Models For Sale

Used Pontiac Grand Prix
25 Great Deals out of 2,828 listings starting at $1,850
Used Chevrolet Impala
554 Great Deals out of 35,447 listings starting at $899
Used Chevrolet Monte Carlo
12 Great Deals out of 1,428 listings starting at $2,400
Used Dodge Charger
536 Great Deals out of 28,341 listings starting at $2,500
Used Pontiac Grand Am
3 Great Deals out of 1,159 listings starting at $1,000
Used Pontiac GTO
6 Great Deals out of 472 listings starting at $6,995
Used Ford Mustang
689 Great Deals out of 44,310 listings starting at $1,500
Used Buick Regal
176 Great Deals out of 10,504 listings starting at $5,995
Used Chevrolet Malibu
1,119 Great Deals out of 80,277 listings starting at $2,500
Used Buick Park Avenue
408 listings starting at $2,200
Used Buick LeSabre
21 Great Deals out of 1,939 listings starting at $1,588
Used Pontiac G6
83 Great Deals out of 4,084 listings starting at $1,295

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.