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

77,855

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 out of 1 people think this is helpful.
77,855

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 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Neon

Looking for a Used Neon in your area?

CarGurus has 911 nationwide Neon listings starting at $1,500.

ZIP:

Search Dodge Neon Questions

Dodge Neon Experts

#1 Justin Gilmore
Justin Gilmore
Reputation 1,180
#2 Matt Thibault
Matt Thibault
Reputation 890
#3 Scott Goodyear
Scott Goodyear
Reputation 770
View All

Related Models For Sale

Used Dodge Neon SRT-4
41 listings starting at $4,999
Used Honda Civic
1,143 Great Deals out of 65,143 listings starting at $1,195
Used Honda Accord
1,199 Great Deals out of 78,038 listings starting at $969
Used Ford Mustang
722 Great Deals out of 38,312 listings starting at $1,750
Used Ford Focus
1,253 Great Deals out of 58,946 listings starting at $1,395
Used Toyota Corolla
1,335 Great Deals out of 68,323 listings starting at $1,399
Used Nissan Altima
1,128 Great Deals out of 85,766 listings starting at $695
Used Mitsubishi Lancer Evolution
18 Great Deals out of 707 listings starting at $14,977
Used Mitsubishi Eclipse
37 Great Deals out of 1,526 listings starting at $1,595