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VOLVO XC90 OVERHEATING
PROBLEMS: CAUSES AND
SYMPTOMS BY AUTO EXPERTS
OF MARLBOROUGH
W h e n t h e e n g i n e s t a r t s t o
o v e r h e a t , i t i s v e r y
i n c o n v e n i e n t t o d r i v e y o u r
V o l v o X C 9 0 .
G e n e r a l l y , t h e h e a t i s
g e n e r a t e d b y c o m b u s t i o n
a n d i t c a n m e l t o r w a r p t h e
e n g i n e b l o c k .
Y o u c a n e n d u p c r a c k i n g
t h e e n g i n e b l o c k a n d
c y l i n d e r h e a d s .
A n d y o u n e e d t o s c h e d u l e a n
a p p o i n t m e n t w i t h
p r o f e s s i o n a l s i n M a r l b o r o u g h .
COMMON CAUSES FOR ENGINE
OVERHEATING
LEAKAGE
W h e n y o u r V o l v o X C 9 0
e n g i n e s t a r t s t o o v e r h e a t , t h e
f i r s t t h i n g t o c h e c k i s s i g n s o f
l e a k s .
E v e n a s m a l l l e a k a l l o w s a i r
t o e n t e r t h e s y s t e m
a n d c a u s e t h e e n g i n e t o
o v e r h e a t .
T h e c o o l a n t c a n n o t p a s s
t h r o u g h t h e a i r l o c k a n d
t h e e n g i n e s t a r t s t o o v e r h e a t
d u e t o l a c k o f c i r c u l a t i o n .
BLOCKAGE
D u r i n g c o l d w e a t h e r , t h e
t e m p e r a t u r e c a n d r o p
b e l o w t h e f r e e z i n g p o i n t .
A b a d q u a l i t y c o o l a n t c a n g e t
c o n c e n t r a t e d a n d
c a u s e a b l o c k a g e .
T h i s c o n d i t i o n i s h a r m f u l
t o b o t h t h e e n g i n e a n d
t h e r a d i a t o r .
LOW
OIL LEVEL
DIVE
T h e e n g i n e o i l w o r k s t o
l u b r i c a t e a l l t h e
r e v o l v i n g a n d m o v i n g p a r t s .
B u t , i t a l s o h e l p s w i t h t h e
c o o l i n g p r o c e s s a n d
p r e v e n t s t h e b u i l d u p o f
e x c e s s i v e h e a t .
A l w a y s u s e f u l l y s y n t h e t i c
e n g i n e o i l a s i t
h e l p s t o r e m o v e m o s t o f t h e
u n u s e d h e a t i n t h e e n g i n e .
BROKEN
WATER PUMP
F o r m a i n t a i n i n g t h e r i g h t
t e m p e r a t u r e i n y o u r
e n g i n e , t h e r e m u s t b e p r o p e r
c i r c u l a t i o n o f t h e c o o l a n t .
A b r o k e n o r f a i l i n g w a t e r
p u m p l e a d s t o e n g i n e
o v e r h e a t i n g .
T h e m o s t c o m m o n r e a s o n
f o r a b r o k e n w a t e r p u m p
i s g e n e r a l w e a r & t e a r s .
COMMON
SYMPTOMS OF ENGINE
OVERHEATING
STEAM
FROM HOOD
I f t h e e n g i n e i s n o t g e t t i n g
e n o u g h c o o l a n t
c i r c u l a t i o n , t h e t e m p e r a t u r e w i l l
s t a r t t o r i s e .
I n e x t r e m e o v e r h e a t i n g c a s e s ,
s t e a m w i l l c o m e
o u t f r o m u n d e r n e a t h y o u r h o o d .
T h e s t e a m c o m e s f r o m
t h e c o o l a n t t h a t h a s
r e a c h e d i t s b o i l i n g
p o i n t a n d b u i l d s
p r e s s u r e w i t h i n t h e
c o o l i n g s y s t e m .
RED
TEMPERAT-URE
GAUGE
T h e t e m p e r a t u r e g a u g e o n y o u r
d a s h b o a r d k e e p s
y o u i n f o r m e d a b o u t t h e
t e m p e r a t u r e i n y o u r e n g i n e .
I t w o r k s b y m e a s u r i n g
t h e t e m p e r a t u r e o f t h e
c o o l a n t .
W h e n t h e t e m p e r a t u r e i s v e r y
h i g h , e i t h e r t h e
t e m p e r a t u r e w a r n i n g l i g h t
b e c o m e s r e d o r t h e g a u g e r e a d s
n e a r m a x i m u m .
THUMPING NOISES
T h e r e i s a t h e r m o s t a t i n t h e
c o o l i n g s y s t e m t h a t
c o n t r o l s t h e v a l v e a l l o w i n g t h e
f l o w o f c o o l a n t t o t h e r a d i a t o r .
A s t u c k v a l v e l e a d s t o t r a p p e d
a n d h e a t e d
c o o l a n t i n t h e e n g i n e b l o c k .
W h e n a c o l d c o o l a n t c o m e s i n t o
c o n t a c t w i t h t h e
h e a t e d c o o l a n t , y o u h e a r a l o u d
t h u m p i n g n o i s e c o m i n g f r o m t h e
e n g i n e a r e a .
REDUCED
ENGINE POWER
I f y o u f e e l t h a t y o u r c a r
i s n o t m o v i n g s m o o t h l y
o r a s f a s t a s i t w a s ,
t h e n t h e e n g i n e i s t o
b l a m e .
L o o k f o r t h e o t h e r s i g n s o f a n
o v e r h e a t e d e n g i n e
s u c h a s d a s h b o a r d t e m p e r a t u r e
g a u g e , t h u m p i n g n o i s e , o r s m o k e
f r o m t h e h o o d .
I f y o u f i n d a n y o f t h e s e ,
s c h e d u l e a s e r v i c e
a p p o i n t m e n t f o r y o u r
V o l v o X C 9 0 i n
M a r l b o r o u g h .
THANK YOU
https://www .p rofessionalau tomo tive. com /

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Volvo XC90 Overheating Problems Causes and Symptoms by Auto Experts of Marlborough

  • 1. VOLVO XC90 OVERHEATING PROBLEMS: CAUSES AND SYMPTOMS BY AUTO EXPERTS OF MARLBOROUGH
  • 2. W h e n t h e e n g i n e s t a r t s t o o v e r h e a t , i t i s v e r y i n c o n v e n i e n t t o d r i v e y o u r V o l v o X C 9 0 .
  • 3. G e n e r a l l y , t h e h e a t i s g e n e r a t e d b y c o m b u s t i o n a n d i t c a n m e l t o r w a r p t h e e n g i n e b l o c k .
  • 4. Y o u c a n e n d u p c r a c k i n g t h e e n g i n e b l o c k a n d c y l i n d e r h e a d s .
  • 5. A n d y o u n e e d t o s c h e d u l e a n a p p o i n t m e n t w i t h p r o f e s s i o n a l s i n M a r l b o r o u g h .
  • 6. COMMON CAUSES FOR ENGINE OVERHEATING
  • 8. W h e n y o u r V o l v o X C 9 0 e n g i n e s t a r t s t o o v e r h e a t , t h e f i r s t t h i n g t o c h e c k i s s i g n s o f l e a k s .
  • 9. E v e n a s m a l l l e a k a l l o w s a i r t o e n t e r t h e s y s t e m a n d c a u s e t h e e n g i n e t o o v e r h e a t .
  • 10. T h e c o o l a n t c a n n o t p a s s t h r o u g h t h e a i r l o c k a n d t h e e n g i n e s t a r t s t o o v e r h e a t d u e t o l a c k o f c i r c u l a t i o n .
  • 12. D u r i n g c o l d w e a t h e r , t h e t e m p e r a t u r e c a n d r o p b e l o w t h e f r e e z i n g p o i n t .
  • 13. A b a d q u a l i t y c o o l a n t c a n g e t c o n c e n t r a t e d a n d c a u s e a b l o c k a g e .
  • 14. T h i s c o n d i t i o n i s h a r m f u l t o b o t h t h e e n g i n e a n d t h e r a d i a t o r .
  • 16. DIVE T h e e n g i n e o i l w o r k s t o l u b r i c a t e a l l t h e r e v o l v i n g a n d m o v i n g p a r t s .
  • 17. B u t , i t a l s o h e l p s w i t h t h e c o o l i n g p r o c e s s a n d p r e v e n t s t h e b u i l d u p o f e x c e s s i v e h e a t .
  • 18. A l w a y s u s e f u l l y s y n t h e t i c e n g i n e o i l a s i t h e l p s t o r e m o v e m o s t o f t h e u n u s e d h e a t i n t h e e n g i n e .
  • 20. F o r m a i n t a i n i n g t h e r i g h t t e m p e r a t u r e i n y o u r e n g i n e , t h e r e m u s t b e p r o p e r c i r c u l a t i o n o f t h e c o o l a n t .
  • 21. A b r o k e n o r f a i l i n g w a t e r p u m p l e a d s t o e n g i n e o v e r h e a t i n g .
  • 22. T h e m o s t c o m m o n r e a s o n f o r a b r o k e n w a t e r p u m p i s g e n e r a l w e a r & t e a r s .
  • 25. I f t h e e n g i n e i s n o t g e t t i n g e n o u g h c o o l a n t c i r c u l a t i o n , t h e t e m p e r a t u r e w i l l s t a r t t o r i s e .
  • 26. I n e x t r e m e o v e r h e a t i n g c a s e s , s t e a m w i l l c o m e o u t f r o m u n d e r n e a t h y o u r h o o d .
  • 27. T h e s t e a m c o m e s f r o m t h e c o o l a n t t h a t h a s r e a c h e d i t s b o i l i n g p o i n t a n d b u i l d s p r e s s u r e w i t h i n t h e c o o l i n g s y s t e m .
  • 29. T h e t e m p e r a t u r e g a u g e o n y o u r d a s h b o a r d k e e p s y o u i n f o r m e d a b o u t t h e t e m p e r a t u r e i n y o u r e n g i n e .
  • 30. I t w o r k s b y m e a s u r i n g t h e t e m p e r a t u r e o f t h e c o o l a n t .
  • 31. W h e n t h e t e m p e r a t u r e i s v e r y h i g h , e i t h e r t h e t e m p e r a t u r e w a r n i n g l i g h t b e c o m e s r e d o r t h e g a u g e r e a d s n e a r m a x i m u m .
  • 33. T h e r e i s a t h e r m o s t a t i n t h e c o o l i n g s y s t e m t h a t c o n t r o l s t h e v a l v e a l l o w i n g t h e f l o w o f c o o l a n t t o t h e r a d i a t o r .
  • 34. A s t u c k v a l v e l e a d s t o t r a p p e d a n d h e a t e d c o o l a n t i n t h e e n g i n e b l o c k .
  • 35. W h e n a c o l d c o o l a n t c o m e s i n t o c o n t a c t w i t h t h e h e a t e d c o o l a n t , y o u h e a r a l o u d t h u m p i n g n o i s e c o m i n g f r o m t h e e n g i n e a r e a .
  • 37. I f y o u f e e l t h a t y o u r c a r i s n o t m o v i n g s m o o t h l y o r a s f a s t a s i t w a s , t h e n t h e e n g i n e i s t o b l a m e .
  • 38. L o o k f o r t h e o t h e r s i g n s o f a n o v e r h e a t e d e n g i n e s u c h a s d a s h b o a r d t e m p e r a t u r e g a u g e , t h u m p i n g n o i s e , o r s m o k e f r o m t h e h o o d .
  • 39. I f y o u f i n d a n y o f t h e s e , s c h e d u l e a s e r v i c e a p p o i n t m e n t f o r y o u r V o l v o X C 9 0 i n M a r l b o r o u g h .
  • 40. THANK YOU https://www .p rofessionalau tomo tive. com /