Overheating only when driven...does not overheat when idling. It can idle all day long...but overheats when driven.

10

Asked by Jul 08, 2014 at 10:17 AM about the 2003 Dodge Neon 4 Dr SXT Sedan

Question type: Maintenance & Repair

My 2003 Neon has had all components replaced...from radiator cap, thermostat, thermostat housing, both fan relays, radiator, and unforntuantely, I have also replaced the water pump and timing belt (Seems like money ill spent right now.)  Regardless, the oil remains clean (no water or antifreeze in oil), but the resevoir bubbles when the car is driven.  It can sit there all day long and idle with no temperature issue.  There are no leaks from the head...but I do have bubbling taking place in the resevoir when the car is driven about 8 to 10 miles.  Any help is appreciated.

3 Answers

95,275

Bubbling is not good, have you had the vehicle block checked? High cooling system pressures might be your problem.

10

I was advised the head was not an issue...not sure now... How do you you check for high cooling system pressure and what would that mean? Again, there is no problem with oil condition and there is no problem with the condition of the coolant. What does the bubbling mean when the engine is under load and the coolant is no longer circulating?

1 of 1 people found this helpful.
95,275

Bubbling is usually combustion gasses in the cooling system, a block check will tell you if this is the case. If you have a cooling pressure tester hook it up and watch the pressure as you rev the engine it should slowly rise, if it rises rapidly then you have a head or block pressure leak.

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

Neon

Looking for a Used Neon in your area?

CarGurus has 700 nationwide Neon listings starting at $1,500.

ZIP:

Search Dodge Neon Questions

Dodge Neon Experts

#1 Justin Gilmore
Justin Gilmore
Reputation 1,320
#2 Matt Thibault
Matt Thibault
Reputation 950
#3 Scott Goodyear
Scott Goodyear
Reputation 850
View All

Related Models For Sale

Used Dodge Neon SRT-4
31 listings starting at $3,995
Used Honda Civic
865 Great Deals out of 89,075 listings starting at $1,299
Used Ford Mustang
637 Great Deals out of 46,709 listings starting at $750
Used Ford Focus
694 Great Deals out of 57,469 listings starting at $795
Used Honda Accord
1,040 Great Deals out of 77,387 listings starting at $999
Used Toyota Camry
1,118 Great Deals out of 91,351 listings starting at $1,222
Used Chevrolet Impala
626 Great Deals out of 35,400 listings starting at $899
Used Nissan Altima
1,254 Great Deals out of 79,776 listings starting at $1,500
Used Chevrolet Camaro
245 Great Deals out of 31,906 listings starting at $1,000
Used Mitsubishi Eclipse
27 Great Deals out of 1,313 listings starting at $2,295

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.